A wall-flow type exhaust gas purification catalyst placed in an exhaust pipe of an internal combustion system to purify exhaust gas emitted from the internal combustion system, with the exhaust gas purification catalyst comprising: a substrate that has a wall-flow structure and comprises an entrance cell whose exhaust inlet side has an open end as well as an exit cell whose exhaust outlet side has an open end wherein the cells are separated with porous partition walls , an upstream coating section formed in an internal portion of the partition wall facing the entrance cell , from the exhaust inlet-side end in the extending direction of the partition wall , and a downstream coating section formed in an internal portion of the partition wall facing the exit cell , from the exhaust outlet-side end in the extending direction, having a length shorter than the entire length L w of the partition wall ; wherein the upstream coating section and the downstream coating section individually comprise a catalytic metal and a support carrying the catalytic metal, in the downstream coating section , the catalytic metal is concentrated in the surface layer in contact with the exit cell , and the downstream coating section is divided into two subsections in thickness direction vertical to the extending direction, namely a first downstream coating subsection relatively close to the entrance cell and a second downstream coating subsection relatively close to the exit cell , the first downstream coating subsection being essentially free of the catalytic metal, and the second downstream coating subsection comprising the catalytic metal, wherein the catalytic metal content in the pores of the partition wall is at least 80 mass%, when the total amount of the catalytic metal in the downstream coating section is 100 mass%. a substrate that has a wall-flow structure and comprises an entrance cell whose exhaust inlet side has an open end as well as an exit cell whose exhaust outlet side has an open end wherein the cells are separated with porous partition walls , an upstream coating section formed in an internal portion of the partition wall facing the entrance cell , from the exhaust inlet-side end in the extending direction of the partition wall , and a downstream coating section formed in an internal portion of the partition wall facing the exit cell , from the exhaust outlet-side end in the extending direction, having a length shorter than the entire length L w of the partition wall ; wherein the upstream coating section and the downstream coating section individually comprise a catalytic metal and a support carrying the catalytic metal, in the downstream coating section , the catalytic metal is concentrated in the surface layer in contact with the exit cell , and the downstream coating section is divided into two subsections in thickness direction vertical to the extending direction, namely a first downstream coating subsection relatively close to the entrance cell and a second downstream coating subsection relatively close to the exit cell , the first downstream coating subsection being essentially free of the catalytic metal, and the second downstream coating subsection comprising the catalytic metal, wherein the catalytic metal content in the pores of the partition wall is at least 80 mass%, when the total amount of the catalytic metal in the downstream coating section is 100 mass%. <EOS>