The utility model relates to a kneading massage structure on the back of an handstand (2), which mainly comprises a seat body and at least two plate body groups combined with the seat body.Among them, the seat system is provided with a transmission mechanism and positioning parts at appropriate positions. The two plate body groups are provided with a plurality of hemispheres and a sliding groove corresponding to the positioning parts of the seat body, so that the positioning parts are penetrated into the sliding groove, and one end of the two plate body groups is pivoted to the transmission mechanism to form the back kneading massage structure of the inverted machine (2).The utility model is used for mounting on the inverted plate frame of the handstand and the back of the chair of the seat. Driven by the transmission mechanism and the holding limit between the positioning piece and the sliding groove, the plate body can form a circle and a left-right movement, and then the massage and kneading effect on the human body can be formed by the hemispherical body.一種倒立機之背部揉捏按摩結構(二),主要係包含一座體及結合於該座體之至少兩板體組。其中,該座體係設有一傳動機構,並於適當位置設有定位件,該兩板體組係設有複數之半球體,以及對應於座體定位件之滑槽,使定位件穿設於滑槽,且使該兩板體組的其中一端樞接於傳動機構,以構成倒立機之背部揉捏按摩結構(二)。俾供裝設於倒立機倒立板架、座椅之椅背等,藉由傳動機構的帶動,以及定位件與滑槽的牽制限位,使該等板體構成圈繞及左右運動,進而藉由半球體構成對人體之按摩揉捏效果。