The invention discloses a novel abdominal training wheel structure. The structure comprises a right wheel and a left wheel, a right handle and a left handle are installed on the left wheel and the right wheel in a matched mode respectively, an inner right bearing and an inner left bearing are sleeved with the inner rings of the right wheel and the left wheel respectively, the inner ring of the inner right bearing is provided with a shaft hole, and the shaft hole horizontally runs through the inner ring of the inner right bearing; the middle of a bidirectional threaded screw rod pipe is sleeved with a sleeving piece, a waist sleeve ring is installed on the sleeving piece, and the bidirectional threaded screw rod pipe penetrates through the left handle and is fixedly connected with an adjusting button; the middle of the right handle is provided with a springing groove, a first connecting rod is installed on the springing groove through a lever shaft, sleeved with a rubber brake and connected to the bottom of the springing groove through two springs, and the lever shaft is arranged at the left end of the springing groove; one section of the first connecting rod is connected with a second connecting rod, the second connecting rod horizontally penetrates through the shaft hole, a bearing inner pin is arranged in the middle of the inner wall of the shaft hole and comprises a pin hole the cross section of which is T-shaped, a pin column is installed in the pin hole, and reset springs are arranged at the two side bottoms of the pin column.