Abstract: It was described to confirm the mechanism of slotted screen liner sand control and its screen fractured width. The compatibility of slotted screen liner and formation sand was studied. The technology of slotted screen liner sand control used in percolation ability formation and its field test was introduced. It has a simple operation and high repeat utilize rate, be the same with every sand reservoir with higher permeability, especially with loose sand viscous reservoir before steam injection. The problems of wire-wrapped screen were settled such as complex structure, longer stage in work job atc.