A planetary gear type transmission comprising: an input shaft configured to rotate around a rotation axis; a first intermediate shaft configured to rotate around the rotation axis; a first planetary gear mechanism having a first sun gear, a first planetary gear, a first ring gear, and a first carrier configured to rotate integrally with the input shaft; a second planetary gear mechanism having a second sun gear, a second planetary gear, a second ring gear, and a second carrier; a third planetary gear mechanism having a third sun gear configured to rotate integrally with the first intermediate shaft, a third planetary gear, a third ring gear, and a third carrier configured to rotate integrally with the second ring gear; a fourth planetary gear mechanism having a fourth sun gear configured to rotate integrally with the first intermediate shaft, a fourth planetary gear, a fourth ring gear, and a fourth carrier configured to rotate integrally with the third ring gear and to output power; a second clutch configured to couple the first carrier to the second carrier; a third clutch configured to couple the second carrier to the first intermediate shaft; a first brake configured to brake rotation of the first sun gear; and a third brake configured to brake rotation of the fourth ring gear, wherein the first planetary gear mechanism, the second planetary gear mechanism, the third planetary gear mechanism, and the fourth planetary gear mechanism are disposed in this order along a direction of rotation axis, characterized in that the second sun gear is configured to rotate integrally with the first ring gear; and the planetary gear type transmission further comprises: a first clutch configured to couple the first ring gear and the second sun gear to the first intermediate shaft; and a second brake configured to brake rotation of the second ring gear and the third carrier. an input shaft configured to rotate around a rotation axis; a first intermediate shaft configured to rotate around the rotation axis; a first planetary gear mechanism having a first sun gear, a first planetary gear, a first ring gear, and a first carrier configured to rotate integrally with the input shaft; a second planetary gear mechanism having a second sun gear, a second planetary gear, a second ring gear, and a second carrier; a third planetary gear mechanism having a third sun gear configured to rotate integrally with the first intermediate shaft, a third planetary gear, a third ring gear, and a third carrier configured to rotate integrally with the second ring gear; a fourth planetary gear mechanism having a fourth sun gear configured to rotate integrally with the first intermediate shaft, a fourth planetary gear, a fourth ring gear, and a fourth carrier configured to rotate integrally with the third ring gear and to output power; a second clutch configured to couple the first carrier to the second carrier; a third clutch configured to couple the second carrier to the first intermediate shaft; a first brake configured to brake rotation of the first sun gear; and a third brake configured to brake rotation of the fourth ring gear, wherein the first planetary gear mechanism, the second planetary gear mechanism, the third planetary gear mechanism, and the fourth planetary gear mechanism are disposed in this order along a direction of rotation axis, characterized in that the second sun gear is configured to rotate integrally with the first ring gear; and the planetary gear type transmission further comprises: a first clutch configured to couple the first ring gear and the second sun gear to the first intermediate shaft; and a second brake configured to brake rotation of the second ring gear and the third carrier. a first clutch configured to couple the first ring gear and the second sun gear to the first intermediate shaft; and a second brake configured to brake rotation of the second ring gear and the third carrier.