Exhaust gas purification catalyst filter for gasoline engine

The purpose of the present invention is to provide an exhaust gas purification catalyst filter in which soot collection performance is improved without increasing pressure loss associated with the formation of a catalyst layer into a partition wall of a wall-flow-type base material. The exhaust gas purification catalyst filter for a gasoline engine is an exhaust gas purification catalyst filter for purifying exhaust gas of a gasoline engine, and is formed from a wall-flow base material and a catalyst layer, the wall-flow-type substrate defines, by means of a porous partition wall, an introduction-side chamber having an end opening on the exhaust gas introduction side, and an exhaust-side chamber adjacent to the introduction-side chamber and having an end opening on the exhaust gas discharge side, and the catalyst layer is formed in pores of the partition wall. The absolute value of the degree of deviation of the catalyst layer formed in the pores of the partition walls is 4.50 or less, the amount of the washc