A precoding multiuser MIMO model was proposed for the multiuser indoor visible light communication system. The multiuser interference was eliminated by data preprocessing in transmitter, leading to the reduction of complexity and power consumption of terminals in the VLC system. Based on a 4×［2, 2］ indoor MUMIMO VLC system, the limitation of block diagonalization precoding algorithm in VLC system was figured out. The corresponding solution by utilizing receivers with different field of view was analyzed. The impact of the terminals′ location to BER and SNR performances of the proposed system was also investigated. Based on the numerical results of the proposed indoor VLC system, the terminals can achieve 100 Mb/s at a BER of 10－6 in the most indoor area when single LED chip′s power is 10 mW.