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In order to overcome the shortcomings brought by the narrow bandwidth of wireless network and limited computing ability of mobile terminals, this paper mainly proposes a 3D model transmission and interactive real-time rendering method over wireless local area network. Firstly, an optimized model simplified algorithm is presented for preserve the visually important vertices longer than other vertices. Then, an effective real-time interactive rendering method is developed. With the help of the smart model coding and computing task assigning, the progressive model can be delivered from the server to mobile terminal quickly and rendered real-time without any redundant local reconstruct computing. The experimental results on HP210 Pocket PC PDA among 802.11 wireless network show that the proposed method could achieve visually appealing simplified result and gain real-time interactive rendering for multi-resolution model among wireless network.