With the rapid development of virtual reality (VR), the demand for 3D scenes has been boosted dramatically. Massive algorithms of automatic arrangement for objects have been proposed to solve this problem. However, few of these techniques are applied in VR. To make the automatic 3D scene synthesizing more suitable for VR, we put forward a series of innovative methods, considering the interaction and presentation features in VR. Our methods, including automatic scene synthesis and intelligent scene editing, contribute to the efficiency and effectiveness of VR scene synthesis. We present a multi-person, multi-terminal remote 3D scene collaborative layout system with the above technical sustain. These attributes, consequently, promote the applicability and convenience of our system.