This invention creates a portable massage device structure, including: a grip and a massage roller, the handle is flat, is provided with a grip and a U-shaped pivot seat, the U-shaped pivot seat is provided with an expansion elasticity The massage roller can be replaced in the opening of the U-shaped pivot seat of the handle, so that the massage roller can rotate freely in the opening of the U-shaped pivot seat of the handle; Dakota replaces massage rollers with different massage protrusions according to the needs of each person. The manufacturing cost is low, the volume is small, and the weight is light. It can be easily carried around and massaged anytime, anywhere.本創作一種輕便型按摩器結構,包含:一握柄及一按摩滾輪,該握柄呈扁平狀,設有一握持部及一U型樞接座,該U型樞接座設有一具擴張彈性之開口,該按摩滾輪可替換的組設於該握柄之U型樞接座的開口內,使得該按摩滾輪可於該握柄之U型樞接座的開口內自由轉動;藉此,俾達可因應各人需求替換具有不同按摩凸部之按摩滾輪,製造成本低,體積小、重量輕,可方便隨身攜帶,隨時隨地進行按摩。