An original strategy for immobilization of photocatalyst on the gelatinous membrane surface to fabricate the composite photocatalytic membrane through submerged precipitated phase inversion method based on the gel property of organic casting solution was proposed to solve the problem of membrane fouling and photocatalyst recovery. The effect of photocatalyst on the structure and performance of the composite photocatalytic membrane was studied systematically. With the increase of photocatalyst load, the micropore of the composite photocatalytic membrane was occupied by the photocatalyst to form a uniform and complete photocatalytic layer, which contributed to improve the optical property, hydrophilicity and water flux of the composite photocatalytic membrane. The water flux was 628L/(m²·h), 92.76% and 41.53% of fluvastatin and TOC were removed by the composite photocatalytic membrane with ZnIn₂S₄ loading of 1.2mg/cm². Compared with PVDF membrane, the permeability and photocatalytic performance were enhanced and the stability of performance was demonstrated during the long-term operation. The outstanding antifouling performance of the composite photocatalytic membrane was confirmed due to the photocatalytic degradation of pollutant adsorbed on the membrane surface or pore. The stable immobilization of photocatalyst and efficient utilization of incident light were simultaneously achieved for the composite photocatalytic membrane. The structure and performance of the composite photocatalytic membrane were also regulated. A feasible way for beneficial combination of photocatalysis and membrane separation was provided.