The utility model relates to a multifunctional stretching training device.It includes a joint hole at both ends of the handle.Ring protrusion and positioning slot missing,A ferrule set at both ends of the protective kit may be set at the ring protrusion at both ends of the handle.A clamp block is convex at the collar to clamp to the positioning slot.Rotate the handlebar to connect the protective kit.Two positioning plugs: the outer diameter of the plug head end is larger than the inner diameter of the collar.The plug section shall fit tightly to the mating hole.The protection kit,The handlebars are fixed together to form a massage handle group；In addition,The two top ends of the U-shaped bracket are respectively provided with cylindrical parts.A circular concave hole is arranged at both ends of the positioning plug for the cylindrical part to be embedded.The massage handle group was limited but could rotate freely.At the bottom of the U-shaped support, a conical open groove is arranged to clamp one end of the elastic rope.An electronic device is provided by using one of the positioning plugs.Mobile data can be transmitted to mobile app or cloud big data in combination.一種多功能拉伸訓練器，包括一手把兩端各設一結合孔、環突部及定位缺槽，一護套件兩端設套環得套設於手把兩端之環突部，套環處凸設卡塊卡合至定位缺槽，使手把旋轉連動護套件，兩定位封塞：封塞頭端外徑大於套環內徑，封塞段得緊配合於結合孔，可將護套件、手把固定一起組成一按摩把手組；另，U形支架兩頂端分別設圓柱部，於定位封塞兩端設圓凹孔得供圓柱部嵌入，其按摩把手組僅被限位但仍可自由旋轉；於U形支架底部排設一錐形以上開放槽用於卡住彈性繩一端，利用其一定位封塞得設電子裝置，可結合傳輸運動數據至手機APP或雲端大數據。
