LuoJiaZHai gas field is a bigger high H2S gas field in China. Using the cluster horizontal wells is an important way to improve the output of gas well. In order to ensure the long-term and safe production, the paper presents the completion way, completion tools, completion pipe string and completion technology suited for the high output and high H2S gas well. The completion technology is used successfully in LuoJia well 11H and well 16H-1, the completion test production is over the 200×104 m3/d. The successful test of the completion technology supplies helpful experience for developing high sour gas field in Northeast Sichuan.