As visible light communication may be affected by a lot of noise，channel coding receives wide attention it is an important means of communication error correction. To improve the performance of channel decoding，increase the rate of information transmission and reduce the decoding complexity in the visible light communication，this paper uses a scheme with ＲS code and LDPC code cascaded. ＲS code has a good ability to handle unexpected errors，LDPC code has a good performance that is close to the Shannon limit. The scheme is easy to implement with low complexity. Simulation results shows that bit error rate is lower than uncoded，the ability of error correction has more promotion obviously，and the performance compares to different lengths of LDPC code in cascaded codes，when the bit error rate reaches 10－3 ，it can improve the gain amounting to about 2 dB. So it is suitable for visible light communication requirements in practical application.