diff --git a/lib/core/utils.js b/lib/core/utils.js
index 445dead72e..6f6a5f70fd 100644
--- a/lib/core/utils.js
+++ b/lib/core/utils.js
@@ -9,18 +9,28 @@ module.exports = {
   safeParseURL,
 };
 
-function convertObject(obj, ignore) {
-  if (!is.array(ignore)) ignore = [ ignore ];
+function convertObject(obj, ignore, ignoreKeyPaths) {
+  if (!is.array(ignore)) {
+    ignore = [ ignore ];
+  }
+  if (!is.array(ignoreKeyPaths)) {
+    ignoreKeyPaths = ignoreKeyPaths ? [ ignoreKeyPaths ] : [];
+  }
+  _convertObject(obj, ignore, ignoreKeyPaths, '');
+}
+
+function _convertObject(obj, ignore, ignoreKeyPaths, keyPath) {
   for (const key of Object.keys(obj)) {
-    obj[key] = convertValue(key, obj[key], ignore);
+    obj[key] = convertValue(key, obj[key], ignore, ignoreKeyPaths, keyPath ? `${keyPath}.${key}` : key);
   }
   return obj;
 }
 
-function convertValue(key, value, ignore) {
+function convertValue(key, value, ignore, ignoreKeyPaths, keyPath) {
   if (is.nullOrUndefined(value)) return value;
 
   let hit = false;
+  let hitKeyPath = false;
   for (const matchKey of ignore) {
     if (is.string(matchKey) && matchKey === key) {
       hit = true;
@@ -30,7 +40,13 @@ function convertValue(key, value, ignore) {
       break;
     }
   }
-  if (!hit) {
+  for (const matchKeyPath of ignoreKeyPaths) {
+    if (is.string(matchKeyPath) && keyPath === matchKeyPath) {
+      hitKeyPath = true;
+      break;
+    }
+  }
+  if (!hit && !hitKeyPath) {
     if (is.symbol(value) || is.regExp(value)) return value.toString();
     if (is.primitive(value) || is.array(value)) return value;
   }
@@ -38,7 +54,10 @@ function convertValue(key, value, ignore) {
   // only convert recursively when it's a plain object,
   // o = {}
   if (Object.getPrototypeOf(value) === Object.prototype) {
-    return convertObject(value, ignore);
+    if (hitKeyPath) {
+      return '<Object>';
+    }
+    return _convertObject(value, ignore, ignoreKeyPaths, keyPath);
   }
 
   // support class
diff --git a/lib/egg.js b/lib/egg.js
index 8c1b4e9064..55d9fbd63f 100644
--- a/lib/egg.js
+++ b/lib/egg.js
@@ -395,8 +395,15 @@ class EggApplication extends EggCore {
       ignoreList = [];
     }
 
+    let ignoreKeyPaths;
+    try {
+      ignoreKeyPaths = this.config.dump.ignoreKeyPaths;
+    } catch (e) {
+      ignoreKeyPaths = {};
+    }
+
     const json = extend(true, {}, { config: this.config, plugins: this.loader.allPlugins, appInfo: this.loader.appInfo });
-    utils.convertObject(json, ignoreList);
+    utils.convertObject(json, ignoreList, ignoreKeyPaths ? Object.keys(ignoreKeyPaths) : []);
     return {
       config: json,
       meta: this.loader.configMeta,
diff --git a/test/fixtures/apps/dump-ignore-key-path/config/config.default.js b/test/fixtures/apps/dump-ignore-key-path/config/config.default.js
new file mode 100644
index 0000000000..1839bc21cd
--- /dev/null
+++ b/test/fixtures/apps/dump-ignore-key-path/config/config.default.js
@@ -0,0 +1,16 @@
+exports.withKeyPaths = {
+  inner: {
+    key1: {
+      nested: true,
+    },
+  },
+  key2: 'str',
+};
+
+exports.dump = {
+  ignoreKeyPaths: {
+    'config.withKeyPaths.key2': true,
+  },
+};
+
+exports.keys = 'test key';
diff --git a/test/fixtures/apps/dump-ignore-key-path/config/config.unittest.js b/test/fixtures/apps/dump-ignore-key-path/config/config.unittest.js
new file mode 100644
index 0000000000..dd7e76f86b
--- /dev/null
+++ b/test/fixtures/apps/dump-ignore-key-path/config/config.unittest.js
@@ -0,0 +1,5 @@
+exports.dump = {
+  ignoreKeyPaths: {
+    'config.withKeyPaths.inner.key1': true,
+  },
+};
diff --git a/test/fixtures/apps/dump-ignore-key-path/config/plugin.js b/test/fixtures/apps/dump-ignore-key-path/config/plugin.js
new file mode 100644
index 0000000000..bcb4215c28
--- /dev/null
+++ b/test/fixtures/apps/dump-ignore-key-path/config/plugin.js
@@ -0,0 +1,3 @@
+'use strict';
+
+exports.static = false;
diff --git a/test/fixtures/apps/dump-ignore-key-path/package.json b/test/fixtures/apps/dump-ignore-key-path/package.json
new file mode 100644
index 0000000000..cfbe721f9d
--- /dev/null
+++ b/test/fixtures/apps/dump-ignore-key-path/package.json
@@ -0,0 +1,3 @@
+{
+  "name": "dumpconfig"
+}
diff --git a/test/lib/core/utils.test.js b/test/lib/core/utils.test.js
index 35683ab8f6..6acf1beaab 100644
--- a/test/lib/core/utils.test.js
+++ b/test/lib/core/utils.test.js
@@ -155,6 +155,66 @@ describe('test/lib/core/utils.test.js', () => {
       assert(obj.anonymousClassWithPropName === '<Class anonymousClassWithPropName>');
       assert(obj[''] === '<Class anonymous>');
     });
+
+    it('should support keyPath', () => {
+      const obj = {
+        plainObj: 'Plain',
+        Id: 1,
+        recursiveObj: {
+          value1: 'string',
+          value2: 1,
+          innerObj: {
+            key1: true,
+          },
+        },
+        arr: [
+          {
+            v1: 'str',
+          },
+        ],
+      };
+      utils.convertObject(obj, [], [ 'id', 'recursiveObj.value2', 'recursiveObj.innerObj', 'arr' ]);
+      assert.deepEqual(obj, {
+        plainObj: 'Plain',
+        Id: 1,
+        recursiveObj: {
+          value1: 'string',
+          value2: '<Number>',
+          innerObj: '<Object>',
+        },
+        arr: '<Array>',
+      });
+    });
+
+    it('should hit key and keyPath simultaneously work', () => {
+      const obj = {
+        recursiveObj: {
+          value1: 'string',
+          value2: 1,
+          innerObj: {
+            key1: true,
+          },
+        },
+        arr: [
+          {
+            v1: 'str',
+          },
+        ],
+      };
+      utils.convertObject(
+        obj,
+        [ 'arr', 'value2', 'innerObj' ],
+        [ 'recursiveObj.value2', 'recursiveObj.innerObj', 'arr' ]
+      );
+      assert.deepEqual(obj, {
+        recursiveObj: {
+          value1: 'string',
+          value2: '<Number>',
+          innerObj: '<Object>',
+        },
+        arr: '<Array>',
+      });
+    });
   });
 
   describe('safeParseURL()', () => {
diff --git a/test/lib/egg.test.js b/test/lib/egg.test.js
index 66ab0ed35f..672a1ae97e 100644
--- a/test/lib/egg.test.js
+++ b/test/lib/egg.test.js
@@ -254,6 +254,26 @@ describe('test/lib/egg.test.js', () => {
     });
   });
 
+  describe('dumpConfig() ignore key path', () => {
+    const baseDir = utils.getFilepath('apps/dump-ignore-key-path');
+    let app;
+    before(() => {
+      app = utils.app('apps/dump-ignore-key-path');
+      return app.ready();
+    });
+    after(() => app.close());
+
+    it('should ignore key path', () => {
+      const json = require(path.join(baseDir, 'run/application_config.json'));
+      assert.deepEqual(json.config.withKeyPaths, {
+        inner: {
+          key1: '<Object>',
+        },
+        key2: '<String len: 3>',
+      });
+    });
+  });
+
   describe('custom config from env', () => {
     let app;
     let baseDir;