The invention discloses a twisting forming device of bangbangmo. The twisting forming device is used for twisting flour rods of bangbangmo to be shaping like fried dough twist, and comprises a machine body, a workbench arranged on the machine body, and a first twisting mechanism and a second twisting mechanism in coordinated operation with the workbench; the first twisting mechanism comprises a first feeding air cylinder arranged on the left side of the workbench, a twisting vertical air cylinder fixedly connected with a push rod of the first feeding air cylinder, a first twisting horizontal air cylinder fixedly connected with a push rod of the twisting vertical air cylinder, and a first twisting head fixedly connected with a push rod of the first twisting horizontal air cylinder; the first twisting head comprises a first twisting support connected with the push rod of the first twisting horizontal air cylinder; the first twisting support and the first twisting horizontal air cylinder are arranged to be vertical to each other; and the two ends of the first twisting support are connected with a first large wheel and a first small wheel via rotary connection respectively. The twisting forming device of bangbangmo can be used for replacing manual operation.