Abstract: According to the problems of small oil bearing area, great property variation, high mud content of some wells, low liquid supply capacity, and large oil rate decrease of sand control treatment for loss sand reservoir of Guantao zone in Laohekou field, the moderate sand control technology is studied. Through systematic in-lab experiment and sand control technology analysis, ceramsite is selected as the sand control agent, and sand control tools and technology are improved. The field application proves significant sand control and rate increase effect. The improvement of this technology may guide the sand control operations in Laohekou field, and provide some reference to sand control operations for other oil fields.