diff --git a/packages/aws-cdk-lib/aws-apigateway/lib/integration.ts b/packages/aws-cdk-lib/aws-apigateway/lib/integration.ts
index d9a371b12bc7c..1415128cf5319 100644
--- a/packages/aws-cdk-lib/aws-apigateway/lib/integration.ts
+++ b/packages/aws-cdk-lib/aws-apigateway/lib/integration.ts
@@ -167,6 +167,8 @@ export interface IntegrationConfig {
 
   /**
    * The integration's HTTP method type.
+   * Required unless you use a MOCK integration.
+   *
    * @default - no integration method specified.
    */
   readonly integrationHttpMethod?: string;
@@ -205,6 +207,10 @@ export class Integration {
     if (options.timeout && !options.timeout.isUnresolved() && (options.timeout.toMilliseconds() < 50 || options.timeout.toMilliseconds() > 29000)) {
       throw new Error('Integration timeout must be between 50 milliseconds and 29 seconds.');
     }
+
+    if (props.type !== IntegrationType.MOCK && !props.integrationHttpMethod) {
+      throw new Error('integrationHttpMethod is required for non-mock integration types.');
+    }
   }
 
   /**
diff --git a/packages/aws-cdk-lib/aws-apigateway/test/integration.test.ts b/packages/aws-cdk-lib/aws-apigateway/test/integration.test.ts
index c48743f8c2a98..f093bdeb69337 100644
--- a/packages/aws-cdk-lib/aws-apigateway/test/integration.test.ts
+++ b/packages/aws-cdk-lib/aws-apigateway/test/integration.test.ts
@@ -14,6 +14,7 @@ describe('integration', () => {
     // THEN
     expect(() => new apigw.Integration({
       type: apigw.IntegrationType.AWS_PROXY,
+      integrationHttpMethod: 'ANY',
       options: {
         credentialsPassthrough: true,
         credentialsRole: role,
@@ -229,4 +230,21 @@ describe('integration', () => {
 
   });
 
+  test('validates integrationHttpMethod is required for non-MOCK integration types', () => {
+    expect(() => new apigw.Integration({
+      type: apigw.IntegrationType.HTTP_PROXY,
+      options: {
+        timeout: cdk.Duration.seconds(15),
+      },
+    })).toThrow(/integrationHttpMethod is required for non-mock integration types/);
+  });
+
+  test('integrationHttpMethod can be omitted for MOCK integration type', () => {
+    expect(() => new apigw.Integration({
+      type: apigw.IntegrationType.MOCK,
+      options: {
+        timeout: cdk.Duration.seconds(15),
+      },
+    })).not.toThrow();
+  });
 });
\ No newline at end of file
diff --git a/packages/aws-cdk-lib/aws-apigateway/test/method.test.ts b/packages/aws-cdk-lib/aws-apigateway/test/method.test.ts
index f69fdac969d74..fbf92277a920d 100644
--- a/packages/aws-cdk-lib/aws-apigateway/test/method.test.ts
+++ b/packages/aws-cdk-lib/aws-apigateway/test/method.test.ts
@@ -140,7 +140,11 @@ describe('method', () => {
   test('use default integration from api', () => {
     // GIVEN
     const stack = new cdk.Stack();
-    const defaultIntegration = new apigw.Integration({ type: apigw.IntegrationType.HTTP_PROXY, uri: 'https://amazon.com' });
+    const defaultIntegration = new apigw.Integration({
+      type: apigw.IntegrationType.HTTP_PROXY,
+      integrationHttpMethod: 'POST',
+      uri: 'https://amazon.com',
+    });
     const api = new apigw.RestApi(stack, 'test-api', {
       cloudWatchRole: false,
       deploy: false,
@@ -309,6 +313,7 @@ describe('method', () => {
     // WHEN
     api.root.addMethod('GET', new apigw.Integration({
       type: apigw.IntegrationType.AWS_PROXY,
+      integrationHttpMethod: 'GET',
       options: {
         credentialsRole: role,
       },
@@ -331,6 +336,7 @@ describe('method', () => {
     // WHEN
     api.root.addMethod('GET', new apigw.Integration({
       type: apigw.IntegrationType.AWS_PROXY,
+      integrationHttpMethod: 'GET',
       options: {
         credentialsPassthrough: true,
       },