The utility model discloses a novel valve body casting process device. The die comprises a lower die sleeve and a connecting block, a sand core is arranged in the lower die sleeve; connecting seats are arranged on the left side and the right side of the lower die sleeve; a lifting handle is connected to the outer part of the connecting seat; a connecting bolt is mounted in the connecting block; the connecting block is located at the upper end of the lower die sleeve, a connecting nut is fixed to the left end of the connecting bolt, a connecting groove is formed in the upper end of the connecting block, a middle die sleeve is arranged above the connecting groove, an upper die sleeve is arranged above the middle die sleeve, and a die cover is arranged above the die body. The utility model discloses a novel valve body casting process device. Compared with an existing common valve body casting method, the valve body casting method has the advantages that the operation process is faster andmore convenient, the structure is fewer, the manufacturing process is simple, excessive maintenance cost is not needed, the internal structure is complex, the valve body is formed by splicing the multiple sand cores, deformation is not likely to happen in the high-temperature state, the internal size can be well controlled, and the size precision is relatively high.