Abstract: In the mid-later period of sand rock reservoir developing, the opened reservoir become more and more, loss caused by sand production become more and more serious.According to this problem, we developed LH net resin covered sand for multi-layers sand control. This paper introduced the selection of net agent, the definition of net agent length and added quantity, improving of net cover sand strong etc. Through research, the net covered sand has the following features:high permeability, preventing covered sand spit under certain pressure and displacement and realized multi-layers sand control in one time sand control pipe.