Exhaust purification filter

The present invention addresses the problem of providing an exhaust gas purification filter that can reduce pressure loss and has high exhaust gas purification performance and particulate matter capture performance. In order to solve the problem, the present invention provides an exhaust gas purification filter provided with: a filter substrate having a wall flow structure; and an exhaust gas purification catalyst supported on the partition wall of the filter base material, furthermore, the filter base material has a median pore diameter (D50) of 17 [mu] m or more after supporting the exhaust gas purification catalyst, the half-value width of the pore distribution of the filter base material is 7 [mu] m-15 [mu] m, and the exhaust gas purification catalyst is supported in a large amount on a high-density layer in which the density of the exhaust gas purification catalyst is relatively high and a low-density layer in which the density of the exhaust gas purification catalyst is relatively low. The maximum pore