The invention discloses a three-wheeler seat comprising a seat board, a storage box positioned under the seat board and a rechargeable battery arranged in the storage box, wherein a heating tube is arranged in the interlayer of the seat board; circulating liquid is filled in the heating tube; a circulating pump is connected to two ends of the heating tube through pipes; the heating tube and the circulating pump are electrically connected to the rechargeable battery and are provided with a heating switch and a circulating switch; a plurality of vertical storage partitions are arranged in the storage box; horizontal sliding grooves are arranged on two vertical side walls of the storage box; and the horizontal sliding grooves are in sliding fit with the vertical storage partitions. The three-wheeler seat disclosed by the invention can realize the temperature adjustment of the seat by virtue of the heating tube and the circulating liquid arranged in the interlayer of the seat board so as to improve the comfort of an occupant; and at the same time, the slideable vertical storage partitions in the storage box can improve the service performance of the storage box so as to adjust the storage space according to the size of objects and achieve high practicability.