diff --git a/plugins/babel-plugin-canyon/src/index.js b/plugins/babel-plugin-canyon/src/index.js
index a57cf395..d3d96b52 100644
--- a/plugins/babel-plugin-canyon/src/index.js
+++ b/plugins/babel-plugin-canyon/src/index.js
@@ -64,6 +64,54 @@ export default declare((api,config) => {
 
           // 生成初始覆盖率数据
           const initialCoverageDataForTheCurrentFile = generateInitialCoverage(generate(path.node).code)
+          if (generate(path.node).code.includes('coverageData')) {
+            // console.log(path.node)
+
+
+            const t = api.types;
+            // 遍历 Program 中的所有节点
+            path.traverse({
+              VariableDeclarator(variablePath) {
+// 检查是否是 coverageData
+                if (
+                  t.isIdentifier(variablePath.node.id, { name: "coverageData" }) &&
+                  t.isObjectExpression(variablePath.node.init)
+                ) {
+                  // 查找插桩后的字段
+                  const hasInstrumentation = variablePath.node.init.properties.some((prop) =>
+                    t.isIdentifier(prop.key, { name: "_coverageSchema" }) || // 确保是已插桩的字段
+                    t.isIdentifier(prop.key, { name: "s" }) ||
+                    t.isIdentifier(prop.key, { name: "f" })
+                  );
+
+                  if (hasInstrumentation) {
+                    console.log("发现已插桩的 coverageData 节点，进行进一步修改...");
+
+                    // 获取 coverageData 对象的 properties
+                    const properties = variablePath.node.init.properties;
+
+                    // 删除 statementMap、fnMap 和 branchMap 属性
+                    const keysToRemove = ["statementMap", "fnMap", "branchMap"];
+
+                    keysToRemove.forEach(key => {
+                      const index = properties.findIndex(prop =>
+                        t.isIdentifier(prop.key, { name: key })
+                      );
+
+                      if (index !== -1) {
+                        properties.splice(index, 1); // 删除属性
+                        console.log(`已删除 ${key} 属性。`);
+                      }
+                    });
+
+                    // 打印修改后的代码
+                    const newCode = generate(variablePath.node).code;
+                    console.log("修改后的代码：", newCode);
+                  }
+                }
+              }})
+
+          }
           // generateCanyon(__canyon__)
 
           // 生成canyon代码