Receiver plane is an important component of Visible Light Communication (VLC) system, and its receiving angle will affect the performance of system. In traditional VLC system, a vertical optical receiver plane is used, receivers may locate at some places far away from LED source, where the Signal to Noise Ratio (SNR) is much smaller than other areas. At the same time, the peak-to-valley value of SNR is so large. In this paper, we propose and design tilting receiver plane based on Genetic Algorithm to reduce the peak-to-valley value of SNR, and improve the uniform distribution of SNR in a whole room. Based on the numerical results of the proposed indoor VLC system, when using the tilting receiver, the SNR distribution will be improved in VLC system in the use of tilting receiver. The results of numerical analysis show that in the case of one LED source, there is a 4.98 dB improvement of peak-to-valley SNR value. In the case of four LED sources, there is a 2.51 dB improvement of peak-to-valley value of SNR. Hence, the tilting receiver can be proposed to improve the performance of VLC system.