A massage pen.The massage pen comprises a pen body, a power supply unit, a heating unit, a control unit, a pen head and at least one reference point structure.The body of the pen has internal space.The power supply unit is set in the internal space.The heating unit is arranged in the holding space, and the heating unit is electrically connected with the power supply unit.The control unit is electrically connected to the heating unit.The pen head is arranged at the first end of the pen body, and has a reference endpoint.The reference point structure is set on the external surface of the pen body, and the reference point structure is a preset distance from the reference end point.一種按摩筆。此按摩筆包含筆身本體、電源供應單元、發熱單元、控制單元、筆頭以及至少一參考點結構。筆身本體具有內部空間。電源供應單元設置在內部空間中。發熱單元設置在容置空間中，且發熱單元電性連接電源供應單元。控制單元電性連接發熱單元。筆頭設置在筆身本體之第一端，且筆頭具有一基準端點。參考點結構設置在筆身本體之外表面上，且參考點結構與基準端點相距預設距離。
