The invention relates to a planetary roller type power transmission device. The planetary roller type power transmission device comprises a first rotary shaft, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller, a sun roller; a first inner ring that is restricted relative to the circumferential movement of the housing; and a second inner ring which is connected to the second rotary shaft; more than two planet rollers, which are in contact with the sun roller, the first inner ring and the second inner ring; the planet carrier is connected with the sun roller, the first inner ring and the second inner ring; the planet carrier is connected with the sun roller, the first inner ring and the second inner ring;, the planetary roller bearing is supported by the planetary shaft member as rotatable; and the bearing is supported to be rotatable., it supports the planet carrier as being capable of rotating relative to the first rotation axis. The planet carrier has a first planet carrier member that supports a first end portion of a planet shaft member passing through a planet roller, a first end portion that supports a first end portion of a planet shaft member passing through the planet roller, a first planet carrier member that supports a first end portion of a planet shaft member passing through the planet roller,; and a second planetary carrier member that supports the second end bearing of the planetary shaft member, having a first bearing that supports the first planet carrier member at a position closer to the first end side than the sun roller; and a second bearing, which is at a second angle of the sun roller than the sun roller the position of the end side supports the second planet carrier member as a rotatable member.