This creative department provides a massage chair.Including: one underframe,Set on the ground,The upper ends of both sides have a guide rail with a specific shape.The guide rail has a row of teeth inside;One chair rack,On the underframe,It can be used for human body.Including seat and back,At least one pulley is arranged on each side of the seat part and the back side.The pulley system can slide in the guide rail.A massage mechanism is arranged at the bottom of the back;And a driving device,Under the seat frame,It can drive a transmission shaft.Both ends of the transmission shaft are provided with a runner.The runner system is meshed with the row gear.It can slide in the guide rail.Thus, the structure can be simplified.Reduce the capacity.To save the space occupied by the massage chair.本創作係提供一種按摩椅,包含:一底架,設置於地面,兩側上端各具有一特定形狀之導軌,導軌內部具有一排齒;一椅架,設於該底架上,可供人體乘坐,包括有座部及靠背部,該座部及靠背部兩側各具有至少一個之滑輪,該等滑輪係可在該導軌內滑動,該靠背部底端則設有一按摩機構;及一驅動裝置,設於該椅架下方,可驅動一傳動軸,該傳動軸兩端並各具有一轉輪,該轉輪係與排齒嚙接,而可在導軌內滑動;藉此可達構造簡化,縮減容置空間,以節省按摩椅之佔用空間者。