diff --git a/threejs/three-editorcontrols.d.ts b/threejs/three-editorcontrols.d.ts
new file mode 100644
index 0000000000..79cc0e66aa
--- /dev/null
+++ b/threejs/three-editorcontrols.d.ts
@@ -0,0 +1,25 @@
+// Type definitions for three.js (EditorControls.js)
+// Project: https://github.com/mrdoob/three.js/blob/master/examples/js/controls/EditorControls.js
+// Definitions by: Qinsi ZHU <https://github.com/qszhusightp>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="./three.d.ts" />
+
+declare module THREE {
+
+  class EditorControls extends Object3D {
+
+    constructor(object: Camera, domElement?:HTMLElement);
+
+    enabled: boolean;
+    center: THREE.Vector3;
+
+    focus(target: THREE.Object3D, frame: boolean): void;
+    pan(delta: THREE.Vector3): void;
+    zoom(delta: THREE.Vector3): void;
+    rotate(delta: THREE.Vector3): void;
+    dispose(): void;
+
+  }
+
+}