diff --git a/frontend/src/business/components/api/definition/components/body/ApiBody.vue b/frontend/src/business/components/api/definition/components/body/ApiBody.vue
index 4f188a7a7309..fe98a1a4ea77 100644
--- a/frontend/src/business/components/api/definition/components/body/ApiBody.vue
+++ b/frontend/src/business/components/api/definition/components/body/ApiBody.vue
@@ -97,6 +97,7 @@ import MsApiBinaryVariable from "./ApiBinaryVariable";
 import MsApiFromUrlVariable from "./ApiFromUrlVariable";
 import BatchAddParameter from "../basis/BatchAddParameter";
 import Convert from "@/business/components/common/json-schema/convert/convert";
+import {jsonParse, trimAll} from "@/business/components/common/json-schema/convert/jsonParse";
 
 
 export default {
@@ -226,12 +227,9 @@ export default {
       if (this.body.format === 'JSON-SCHEMA') {
         if (this.body.raw) {
           try {
-            if (!this.body.jsonSchema) {
-              this.body.jsonSchema = MsConvert.format(JSON.parse(this.body.raw));
-            } else {
-              let data = MsConvert.format(JSON.parse(this.body.raw));
-              this.body.jsonSchema = this.deepAssign(this.body.jsonSchema, data);
-            }
+            const tmpStr = trimAll(this.body.raw)
+            const tmpObj = jsonParse(tmpStr)
+            this.body.jsonSchema = MsConvert.format(tmpObj);
           } catch (e) {
             this.body.format = 'JSON';
             this.$error(this.$t('api_test.definition.json_format_error'));
diff --git a/frontend/src/business/components/common/json-schema/convert/convert.js b/frontend/src/business/components/common/json-schema/convert/convert.js
index 4e68ed945147..3428a804bbd1 100644
--- a/frontend/src/business/components/common/json-schema/convert/convert.js
+++ b/frontend/src/business/components/common/json-schema/convert/convert.js
@@ -7,7 +7,7 @@ const isObject = require("lodash.isobject");
 const isString = require("lodash.isstring");
 const {post} = require("@/common/js/ajax");
 const isArray = Array.isArray;
-
+const { default: CustomNum } = require('./customNum');
 
 class Convert {
   constructor() {
@@ -113,7 +113,7 @@ class Convert {
         if (!result["properties"]) {
           continue;
         }
-        if (isObject(element)) {
+        if (isObject(element) && !(element instanceof CustomNum)) {
           // 创建当前属性的基本信息
           result["properties"][key] = this._value2object(element, $id, key)
           if (isArray(element)) {
@@ -234,6 +234,10 @@ class Convert {
     } else if (isArray(value)) {
       objectTemplate.type = "array";
       objectTemplate["mock"] = undefined;
+    } else if (value instanceof CustomNum) {
+      // 解决丢失精度问题
+      objectTemplate.type = 'number';
+      objectTemplate['mock'].mock = value.get();
     } else if (isObject(value)) {
       objectTemplate.type = "object"
       objectTemplate["mock"] = undefined;
diff --git a/frontend/src/business/components/common/json-schema/convert/customNum.js b/frontend/src/business/components/common/json-schema/convert/customNum.js
new file mode 100644
index 000000000000..33a59f17f48d
--- /dev/null
+++ b/frontend/src/business/components/common/json-schema/convert/customNum.js
@@ -0,0 +1,9 @@
+class CustomNum{
+  constructor(value) {
+    this.value = value
+  }
+  get() {
+    return this.value
+  }
+}
+export default CustomNum;
diff --git a/frontend/src/business/components/common/json-schema/convert/jsonParse.js b/frontend/src/business/components/common/json-schema/convert/jsonParse.js
new file mode 100644
index 000000000000..2001d74ab891
--- /dev/null
+++ b/frontend/src/business/components/common/json-schema/convert/jsonParse.js
@@ -0,0 +1,91 @@
+import CustomNum from './customNum';
+
+export const jsonParse = (jsonStr) => {
+  let index = 0;
+  function parseValue() {
+    let char = jsonStr[index];
+    if (char === '{') {
+      return parseObject();
+    } else if (char === '[') {
+      return parseArray();
+    } else if (char === '"') {
+      return parseString();
+    } else if (char === 't' || char === 'f') {
+      return parseBoolean();
+    } else if (char === 'n') {
+      return parseNull();
+    } else {
+      return parseNumber();
+    }
+  }
+  function parseObject() {
+    let obj = {};
+    index++;
+    while (jsonStr[index] !== '}') {
+      let key = parseString();
+      index++;
+      let value = parseValue();
+      obj[key] = value;
+      if (jsonStr[index] === ',') {
+        index++;
+      }
+    }
+    index++;
+    return obj;
+  }
+  function parseArray() {
+    let arr = [];
+    index++;
+    while (jsonStr[index] !== ']') {
+      arr.push(parseValue());
+      if (jsonStr[index] === ',') {
+        index++;
+      }
+    }
+    index++;
+    return arr;
+  }
+  function parseString() {
+    let str = '';
+    index++;
+    while (jsonStr[index] !== '"') {
+      str += jsonStr[index];
+      index++;
+    }
+    index++;
+    return str;
+  }
+  function parseNumber() {
+    let numStr = '';
+    while (/[0-9.+-]/.test(jsonStr[index])) {
+      numStr += jsonStr[index];
+      index++;
+    }
+    if (!isInteger(numStr) || numStr.length > 15) {
+      return new CustomNum(numStr);
+    }
+    return parseFloat(numStr);
+  }
+  function parseBoolean() {
+    if (jsonStr[index] === 't') {
+      index += 4;
+      return true;
+    } else {
+      index += 5;
+      return false;
+    }
+  }
+  function parseNull() {
+    index += 4;
+    return null;
+  }
+  return parseValue();
+};
+export const isInteger = (num) => {
+  return /^\d+$/.test(num);
+};
+export const trimAll = (ele) => {
+  if (typeof ele === 'string') {
+    return ele.split(/[\t\r\f\n\s]*/g).join('');
+  }
+};