Provided is an exhaust gas purification catalyst including: a substrate; and a catalyst coated layer containing catalyst particles and formed on a surface of the substrate. The catalyst coated layer has an average thickness of 25-160 [mu]m, and a porosity measured by the weight-in-water method of 50-80 volume%. Moreover, 0.5-50 volume% of the entirety of pores comprises high aspect ratio pores in which an equivalent circular diameter of a pore in a cross sectional image of a catalyst coated layer cross section perpendicular to the exhaust gas flow direction for the substrate is 2-50 [mu]m, and which have an aspect ratio of 5 or higher. The high aspect ratio pores have an average aspect ratio of 10-50.