Non-line-of-sight link visible light communication has the advantages of wide signal coverage and not easy to block the link due to occlusion. However, there are some problems, such as weak link signal and small field of view of the receiving system using a single detector. Aiming at the above-mentioned problems, a receiving mode of multi-detector fusion is proposed. The influence of receiving azimuth angle on the received signal is studied experimentally, the signal-to-noise ratio distribution of the received signal based on the single-detector receiving system and the four detectors receiving system is measured respectively, and the communication performance of the non-line-of-sight link communication system based on four detectors is tested. Experimental results show that the multi-detector fusion receiving method can effectively improve the performance of the non-line-of-sight link communication system, the maximum signal-to-noise ratio of the system with non-line-of-sight link communication can be increased by 10.71 dB by using four detectors, and the maximum communication rate of the system can reach 1 Mbps and the bit error rate is less than 10-6 when the line-of-sight link is completely blocked.