The invention discloses a board dividing tooling. The board dividing tooling is provided with a fixing pin, wherein the fixing pin is matched with a through hole in a circuit board to achieve locating of the circuit board; a push device is arranged at one side of the board dividing tooling and comprises a fixed base; the fixed base is fixed on the board dividing tooling and is provided with a push block capable of moving towards the circuit board or far away from the circuit board along the horizontal direction; a thrust device is arranged between the fixed base and the push block; and the thrust device pushes the push block to extrude the circuit board towards one side along the horizontal direction. According to the technical scheme, the circuit board tightly abuts on one side of the board dividing tooling when a board is divided by adding the push device and extruding the circuit board; and the circuit board does not move when the board is divided, so that the board dividing accuracy of the circuit board can be greatly improved; the requirements of existing electronic products on high board dividing accuracy are met; the board dividing tooling is simple in structure; the manufacturing cost is relatively low; normal board dividing work efficiency of the board dividing tooling is not affected; and excessive charges for manufacturing the board dividing tooling are avoided.