The invention discloses an annular clamping wheel synchronizing mechanism. The annular clamping wheel synchronizing mechanism comprises a bearing platform, wherein a plurality of clamping assemblies are arranged on the surface of the bearing platform; each clamping assembly comprises a material passing bottom plate, gear bases are arranged on two sides of the material passing bottom plate, internal thread fixing seats are arranged in the middle of the two gear bases and are connected through a positive and negative tooth screw, two ends of the positive and negative tooth screw are connected with positioning seats through bearings, the positioning seats are fixed on the bearing platform, yield grooves are further formed in two ends of the gear bases and in the surface of the bearing platform, belt pulleys are arranged at two ends of the surface of each gear base, every two belt pulleys are sleeved with one conveyor belt, one belt pulley is connected with a transmission shaft which penetrates through the corresponding yield groove and is connected with a power mechanism, discharging holes are further formed in the bearing platform at one end of the material passing bottom plate, and a material slideway is arranged in each discharging hole. The annular clamping wheel synchronizing mechanism is simple in structure and convenient to use and can convey round sheet parts accurately.