diff --git a/intelligence_finance_v1_ga/example_test.go b/intelligence_finance_v1_ga/example_test.go
new file mode 100644
index 0000000..a61ab53
--- /dev/null
+++ b/intelligence_finance_v1_ga/example_test.go
@@ -0,0 +1,136 @@
+package intelligence_finance_v1_ga_test
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	sdk "intelligence_finance_v1_ga"
+)
+
+// TestOrderInvoice 演示订单开票接口的调用。
+func TestOrderInvoice(t *testing.T) {
+	client := sdk.NewClient(
+		"https://api.example.com",
+		"your-tenant-id",
+		"dd-ai-table",
+		"your-client-secret",
+	)
+
+	req := &sdk.OrderInvoiceRequest{
+		OrderID:     "ORDER-20240101-001",
+		InvoiceType: sdk.InvoiceTypeDigitalSpecial,
+		Purchaser:   "示例科技有限公司",
+		Taxnum:      "91330100MA27XXXXXX",
+		Email:       "finance@example.com",
+		Phone:       "13800000000",
+		Products: []sdk.Product{
+			{
+				ProductName:      "软件开发服务",
+				RevenueCode:      "3040201000000000000",
+				AmountIncludeTax: "10000.00",
+				Quantity:         "1",
+				TaxSign:          1,
+				TaxRate:          "0.06",
+			},
+		},
+	}
+
+	resp, err := client.OrderInvoice(context.Background(), req)
+	if err != nil {
+		t.Fatalf("OrderInvoice failed: %v", err)
+	}
+	fmt.Printf("开票状态: %d, 错误信息: %s\n", resp.Status, resp.ErrorMsg)
+}
+
+// TestQueryInvoiceStatus 演示开票状态查询接口的调用。
+func TestQueryInvoiceStatus(t *testing.T) {
+	client := sdk.NewClient(
+		"https://api.example.com",
+		"your-tenant-id",
+		"dd-ai-table",
+		"your-client-secret",
+	)
+
+	resp, err := client.QueryInvoiceStatus(context.Background(), &sdk.QueryInvoiceStatusRequest{
+		OrderID: "ORDER-20240101-001",
+	})
+	if err != nil {
+		t.Fatalf("QueryInvoiceStatus failed: %v", err)
+	}
+	fmt.Printf("状态: %d, 描述: %s\n", resp.Status, resp.Message)
+}
+
+// TestCreatePaymentOrder 演示创建付款单据接口的调用。
+func TestCreatePaymentOrder(t *testing.T) {
+	client := sdk.NewClient(
+		"https://api.example.com",
+		"your-tenant-id",
+		"dd-ai-table",
+		"your-client-secret",
+	)
+
+	req := &sdk.CreatePaymentOrderRequest{
+		Code:   "PAY-20240101-001",
+		UserID: "user-001",
+		Title:  "供应商货款",
+		Amount: "10000.00",
+		Supplier: &sdk.Supplier{
+			Name: "示例供应商",
+		},
+		Company: &sdk.Company{
+			Name: "示例企业",
+		},
+		PaymentDetailList: []sdk.PaymentDetail{
+			{
+				Amount: "10000.00",
+				Remark: "货款",
+			},
+		},
+	}
+
+	resp, err := client.CreatePaymentOrder(context.Background(), req)
+	if err != nil {
+		t.Fatalf("CreatePaymentOrder failed: %v", err)
+	}
+	fmt.Printf("单据编码: %s\n", resp.Code)
+}
+
+// TestQueryPaymentStatus 演示支付状态查询接口的调用。
+func TestQueryPaymentStatus(t *testing.T) {
+	client := sdk.NewClient(
+		"https://api.example.com",
+		"your-tenant-id",
+		"dd-ai-table",
+		"your-client-secret",
+	)
+
+	resp, err := client.QueryPaymentStatus(context.Background(), &sdk.QueryPaymentStatusRequest{
+		Code:   "PAY-20240101-001",
+		UserID: "user-001",
+	})
+	if err != nil {
+		t.Fatalf("QueryPaymentStatus failed: %v", err)
+	}
+	fmt.Printf("支付状态: %s, 支付时间: %s\n", resp.PaymentStatus, resp.PaymentTime)
+}
+
+// TestParsePaymentNotify 演示支付完成通知的解析（客户回调接口中使用）。
+func TestParsePaymentNotify(t *testing.T) {
+	body := []byte(`{
+		"code": "PAY-20240101-001",
+		"instanceId": "inst-001",
+		"corpId": "corp-001",
+		"paymentStatus": "SUCCESS",
+		"paymentTime": "2024-01-01 12:00:00",
+		"userId": "user-001",
+		"source": "openapi",
+		"amount": "10000.00"
+	}`)
+
+	data, err := sdk.ParsePaymentNotify(body)
+	if err != nil {
+		t.Fatalf("ParsePaymentNotify failed: %v", err)
+	}
+	fmt.Printf("支付状态: %s\n", data.PaymentStatus)
+}
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