The nickel-rich ternary cathode material LiNi0.8Co0.1Mn0.1O2(NCM811) has excellent discharge capacity, which is the favorite to succeed as the next new cathode materials for lithium-ion batteries. However, it has problems such as serious Li+/Ni2+ mixed discharge, and rapid capacity fading caused by poor structural stability. In order to solve these problems, accelerate the application process of ternary cathode materials in new energy vehicle. LiNi0.8Co0.1Mn0.1O2(NCM811) ternary cathode material coated with LiZr2(PO4)3(LZPO) was obtained by wet coating method, and the structure and electrochemical performance of LZPO coating on NCM811 ternary cathode material were studied in this paper. The results show that the NCM811 coated with 1%LZPO possess the most stable structure, and the best electrochemical performance. The first cycle discharge capacity at 0.1 C rate is 210.16 mAh/g, which is much higher than that of the pristine NCM811 material (201.01 mAh/g); the capacity retention rate after 200 cycles is 79.4%, which is better than that of pristine NCM811 (60.0%).