In order to improve horizontal well cementing quality in Honghe oilfield and meet the requirements of later staged fracturing, the horizontal well cementing technology in Honghe oilfield is studied. In view of the difficulties in horizontal section cementing, GSJ cement slurry system is selected through laboratory and field tests. Based on the measured formation pressure and formation rupture pressure, the balanced pressure cementing design is used to determine the annulus structure of slurry. In order to improve the displacement efficiency, the stabilizer type and placement location are optimized. The professional software simulation indicates that the centralized degree is more than 73%. High-quality well bore preparation and casing floating measure ensure smooth casing strings running down; the use of lengthened rubber plug, resin wheel rigid cyclone centralizer, shut-in valve and other accessories ensure the cementing quality. In the actual application in 53 horizontal wells, cement slurry all returned to the ground. CBL logging show that superior rate of cementing reaches 81.13%. This cementing technology is successfully applied in the horizontal wells in Honghe oilfield, which guarantees the cementing quality and meets the needs of later staged fracturing.