diff --git a/cmd/system_webhooklog.go b/cmd/system_webhooklog.go
new file mode 100644
index 0000000..ca461ac
--- /dev/null
+++ b/cmd/system_webhooklog.go
@@ -0,0 +1,146 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"text/tabwriter"
+
+	"github.com/pepabo/xpoint-cli/internal/xpoint"
+	"github.com/spf13/cobra"
+)
+
+var (
+	systemWebhooklogListFrom      string
+	systemWebhooklogListTo        string
+	systemWebhooklogListDocID     int
+	systemWebhooklogListFormCode  string
+	systemWebhooklogListRouteCode string
+	systemWebhooklogListStatus    string
+	systemWebhooklogListURL       string
+	systemWebhooklogListLimit     int
+	systemWebhooklogListOffset    int
+	systemWebhooklogListOutput    string
+	systemWebhooklogListJQ        string
+
+	systemWebhooklogShowJQ string
+)
+
+var systemWebhooklogCmd = &cobra.Command{
+	Use:   "webhooklog",
+	Short: "Inspect X-point webhook delivery logs (admin)",
+}
+
+var systemWebhooklogListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List webhook delivery logs",
+	Long: `List webhook delivery logs via GET /api/v1/system/webhooklog.
+
+Filters are all optional. --status accepts all | success | failed.
+Requires an administrator account.`,
+	RunE: runSystemWebhooklogList,
+}
+
+var systemWebhooklogShowCmd = &cobra.Command{
+	Use:   "show <uuid>",
+	Short: "Show webhook delivery log detail (request/response)",
+	Long: `Fetch detailed request/response data for a single webhook log entry via
+GET /api/v1/system/webhooklog/{uuid}. Requires an administrator account.
+
+The response is emitted as JSON because the request/response body shape
+depends on the remote endpoint. Use --jq to filter the output.`,
+	Args: cobra.ExactArgs(1),
+	RunE: runSystemWebhooklogShow,
+}
+
+func init() {
+	systemCmd.AddCommand(systemWebhooklogCmd)
+	systemWebhooklogCmd.AddCommand(systemWebhooklogListCmd)
+	systemWebhooklogCmd.AddCommand(systemWebhooklogShowCmd)
+
+	lf := systemWebhooklogListCmd.Flags()
+	lf.StringVar(&systemWebhooklogListFrom, "from", "", "send date from (e.g. 2022/10/01)")
+	lf.StringVar(&systemWebhooklogListTo, "to", "", "send date to (e.g. 2022/12/01)")
+	lf.IntVar(&systemWebhooklogListDocID, "docid", 0, "document id (0 = omit)")
+	lf.StringVar(&systemWebhooklogListFormCode, "form-code", "", "form code")
+	lf.StringVar(&systemWebhooklogListRouteCode, "route-code", "", "approval route code")
+	lf.StringVar(&systemWebhooklogListStatus, "status", "", "status: all | success | failed")
+	lf.StringVar(&systemWebhooklogListURL, "url", "", "destination URL (partial match)")
+	lf.IntVar(&systemWebhooklogListLimit, "limit", 0, "fetch count (0 = omit; server default 50)")
+	lf.IntVar(&systemWebhooklogListOffset, "offset", 0, "offset (0 = omit; server default 0)")
+	lf.StringVarP(&systemWebhooklogListOutput, "output", "o", "", "output format: table|json (default: table on TTY, json otherwise)")
+	lf.StringVar(&systemWebhooklogListJQ, "jq", "", "apply a gojq filter to the JSON response (forces JSON output)")
+
+	sf := systemWebhooklogShowCmd.Flags()
+	sf.StringVar(&systemWebhooklogShowJQ, "jq", "", "apply a gojq filter to the JSON response")
+}
+
+func runSystemWebhooklogList(cmd *cobra.Command, _ []string) error {
+	p := xpoint.WebhooklogListParams{
+		From:      systemWebhooklogListFrom,
+		To:        systemWebhooklogListTo,
+		FormCode:  systemWebhooklogListFormCode,
+		RouteCode: systemWebhooklogListRouteCode,
+		Status:    systemWebhooklogListStatus,
+		URL:       systemWebhooklogListURL,
+	}
+	if cmd.Flags().Changed("docid") {
+		v := systemWebhooklogListDocID
+		p.DocID = &v
+	}
+	if cmd.Flags().Changed("limit") {
+		v := systemWebhooklogListLimit
+		p.Limit = &v
+	}
+	if cmd.Flags().Changed("offset") {
+		v := systemWebhooklogListOffset
+		p.Offset = &v
+	}
+	if p.Status != "" {
+		switch strings.ToLower(p.Status) {
+		case "all", "success", "failed":
+		default:
+			return fmt.Errorf("--status must be all|success|failed, got %q", p.Status)
+		}
+	}
+
+	client, err := newClientFromFlags(cmd.Context())
+	if err != nil {
+		return err
+	}
+	res, err := client.ListWebhooklog(cmd.Context(), p)
+	if err != nil {
+		return err
+	}
+
+	return render(res, resolveOutputFormat(systemWebhooklogListOutput), systemWebhooklogListJQ, func() error {
+		w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+		defer w.Flush()
+		fmt.Fprintln(w, "SEND_DATE\tSTATUS\tDOCID\tFORM_CODE\tROUTE_CODE\tTITLE\tURL\tUUID")
+		for _, e := range res.Data {
+			fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n",
+				e.SendDate, e.StatusCode, e.DocID, e.FormCode, e.RouteCode, e.Title1, e.URL, e.UUID,
+			)
+		}
+		return nil
+	})
+}
+
+func runSystemWebhooklogShow(cmd *cobra.Command, args []string) error {
+	uuid := strings.TrimSpace(args[0])
+	if uuid == "" {
+		return fmt.Errorf("uuid is required")
+	}
+	client, err := newClientFromFlags(cmd.Context())
+	if err != nil {
+		return err
+	}
+	out, err := client.GetWebhooklog(cmd.Context(), uuid)
+	if err != nil {
+		return err
+	}
+	if systemWebhooklogShowJQ != "" {
+		return runJQ(out, systemWebhooklogShowJQ)
+	}
+	return writeJSON(os.Stdout, out)
+}
diff --git a/internal/schema/schema_test.go b/internal/schema/schema_test.go
index f2a6a3e..74b098d 100644
--- a/internal/schema/schema_test.go
+++ b/internal/schema/schema_test.go
@@ -43,6 +43,8 @@ func TestAliases_Sorted(t *testing.T) {
 		"system.master.list",
 		"system.master.show",
 		"system.master.upload",
+		"system.webhooklog.list",
+		"system.webhooklog.show",
 	}
 	if len(got) != len(want) {
 		t.Fatalf("aliases = %v", got)
diff --git a/internal/schema/system.webhooklog.list.json b/internal/schema/system.webhooklog.list.json
new file mode 100644
index 0000000..7a90bc2
--- /dev/null
+++ b/internal/schema/system.webhooklog.list.json
@@ -0,0 +1,85 @@
+{
+  "method": "GET",
+  "path": "/api/v1/system/webhooklog",
+  "summary": "Webhookログ取得",
+  "description": "Webhook の送信日時等を指定して Webhook 送信ログを検索・取得する。\n管理者権限が必要。\n",
+  "parameters": [
+    {
+      "name": "from",
+      "in": "query",
+      "type": "string",
+      "description": "送信日時 From (例: 2022/10/01)"
+    },
+    {
+      "name": "to",
+      "in": "query",
+      "type": "string",
+      "description": "送信日時 To (例: 2022/12/01)"
+    },
+    {
+      "name": "docid",
+      "in": "query",
+      "type": "integer",
+      "description": "書類ID"
+    },
+    {
+      "name": "form_code",
+      "in": "query",
+      "type": "string",
+      "description": "フォームコード"
+    },
+    {
+      "name": "route_code",
+      "in": "query",
+      "type": "string",
+      "description": "承認ルートコード"
+    },
+    {
+      "name": "status",
+      "in": "query",
+      "type": "string",
+      "description": "ステータス: all | success | failed"
+    },
+    {
+      "name": "url",
+      "in": "query",
+      "type": "string",
+      "description": "送信先URL (部分一致)"
+    },
+    {
+      "name": "limit",
+      "in": "query",
+      "type": "integer",
+      "description": "取得件数 (default 50, 推奨 1000 以下)"
+    },
+    {
+      "name": "offset",
+      "in": "query",
+      "type": "integer",
+      "description": "取得開始位置 (default 0)"
+    }
+  ],
+  "response": {
+    "type": "object",
+    "properties": {
+      "data": {
+        "type": "array",
+        "description": "ログデータ (存在しない場合は空配列)",
+        "items": {
+          "type": "object",
+          "properties": {
+            "domain_code": { "type": "string", "description": "ドメインコード" },
+            "docid": { "type": "string", "description": "書類ID" },
+            "form_code": { "type": "string", "description": "フォームコード" },
+            "route_code": { "type": "string", "description": "承認ルートコード" },
+            "title1": { "type": "string", "description": "件名" },
+            "url": { "type": "string", "description": "送信先URL" },
+            "status_code": { "type": "string", "description": "ステータスコード" },
+            "send_date": { "type": "string", "description": "送信日時" },
+            "uuid": { "type": "string", "description": "UUID (詳細取得に使用)" }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/internal/schema/system.webhooklog.show.json b/internal/schema/system.webhooklog.show.json
new file mode 100644
index 0000000..d122d88
--- /dev/null
+++ b/internal/schema/system.webhooklog.show.json
@@ -0,0 +1,33 @@
+{
+  "method": "GET",
+  "path": "/api/v1/system/webhooklog/{uuid}",
+  "summary": "Webhook詳細ログ取得",
+  "description": "Webhook 送信ログの詳細情報 (リクエスト情報、レスポンス情報) を取得する。\n管理者権限が必要。\n",
+  "parameters": [
+    {
+      "name": "uuid",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "Webhookログの UUID"
+    }
+  ],
+  "response": {
+    "type": "object",
+    "properties": {
+      "domain_code": { "type": "string", "description": "ドメインコード" },
+      "docid": { "type": "string", "description": "書類ID" },
+      "url": { "type": "string", "description": "送信先URL" },
+      "status_code": { "type": "string", "description": "ステータスコード" },
+      "uuid": { "type": "string", "description": "UUID" },
+      "request": {
+        "type": "object",
+        "description": "リクエスト情報 (header/body 等)"
+      },
+      "response": {
+        "type": "object",
+        "description": "レスポンス情報 (header/body 等。body は送信先応答により文字列等になる場合がある)"
+      }
+    }
+  }
+}
diff --git a/internal/xpoint/client.go b/internal/xpoint/client.go
index c02a6ad..84077e3 100644
--- a/internal/xpoint/client.go
+++ b/internal/xpoint/client.go
@@ -374,6 +374,88 @@ func (c *Client) UploadUserMasterCSV(ctx context.Context, tableName, fileName st
 	return &out, nil
 }
 
+type WebhooklogEntry struct {
+	DomainCode string `json:"domain_code"`
+	DocID      string `json:"docid"`
+	FormCode   string `json:"form_code"`
+	RouteCode  string `json:"route_code"`
+	Title1     string `json:"title1"`
+	URL        string `json:"url"`
+	StatusCode string `json:"status_code"`
+	SendDate   string `json:"send_date"`
+	UUID       string `json:"uuid"`
+}
+
+type WebhooklogListResponse struct {
+	Data []WebhooklogEntry `json:"data"`
+}
+
+// WebhooklogListParams holds query parameters for GET /api/v1/system/webhooklog.
+type WebhooklogListParams struct {
+	From      string // from
+	To        string // to
+	DocID     *int   // docid
+	FormCode  string // form_code
+	RouteCode string // route_code
+	Status    string // status: all | success | failed
+	URL       string // url
+	Limit     *int   // limit
+	Offset    *int   // offset
+}
+
+func (p WebhooklogListParams) query() url.Values {
+	v := url.Values{}
+	if p.From != "" {
+		v.Set("from", p.From)
+	}
+	if p.To != "" {
+		v.Set("to", p.To)
+	}
+	if p.DocID != nil {
+		v.Set("docid", strconv.Itoa(*p.DocID))
+	}
+	if p.FormCode != "" {
+		v.Set("form_code", p.FormCode)
+	}
+	if p.RouteCode != "" {
+		v.Set("route_code", p.RouteCode)
+	}
+	if p.Status != "" {
+		v.Set("status", p.Status)
+	}
+	if p.URL != "" {
+		v.Set("url", p.URL)
+	}
+	if p.Limit != nil {
+		v.Set("limit", strconv.Itoa(*p.Limit))
+	}
+	if p.Offset != nil {
+		v.Set("offset", strconv.Itoa(*p.Offset))
+	}
+	return v
+}
+
+// ListWebhooklog calls GET /api/v1/system/webhooklog (admin).
+func (c *Client) ListWebhooklog(ctx context.Context, p WebhooklogListParams) (*WebhooklogListResponse, error) {
+	var out WebhooklogListResponse
+	if err := c.do(ctx, http.MethodGet, "/api/v1/system/webhooklog", p.query(), nil, &out); err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+// GetWebhooklog calls GET /api/v1/system/webhooklog/{uuid} (admin). The
+// response contains request/response detail whose body may be an arbitrary
+// type, so it is returned as raw JSON.
+func (c *Client) GetWebhooklog(ctx context.Context, uuid string) (json.RawMessage, error) {
+	path := fmt.Sprintf("/api/v1/system/webhooklog/%s", url.PathEscape(uuid))
+	var out json.RawMessage
+	if err := c.do(ctx, http.MethodGet, path, nil, nil, &out); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 type Approval struct {
 	DocID            int      `json:"docid"`
 	Hidden           *bool    `json:"hidden,omitempty"`