This paper studies a new kind of gel with alkali-tolerance.We have experimented on the influence of polymer concentration,pH,temperrature , Stability to its performance . The experimental results show that gel time is controllable between 2-15d, pH value range is between 7 and 14, gel viscosity is 0.3－2.3?04mPa.s，breakthrough pressure is more than 4 MPa/m on the condition of which temperrature is30－80℃。This technology has applied in 2 wells of Alkali—Surfactant—Polymer Compund Flooding of the No.1 Daqing Oil Production Plant, and achieved the effect of increasing oil and decreasing water.