Pile sinking device with high-precision positioning function

The utility model belongs to the technical field of pile sinking devices, and particularly relates to a pile sinking device with high-precision positioning, which comprises a pile body, a positioning sleeve movably arranged at the top of the pile body, a first positioning structure fixedly connected with the top of the pile body, and a second positioning structure fixedly connected with the top of the pile body. Four groups of second positioning structures are arranged around the periphery of the first positioning structure; a connecting groove is formed in the periphery of the pile body, and the top and one side of the connecting groove are open. The bottom of the positioning sleeve is fixedly connected with a connecting column, positioning grooves and clamping grooves are formed in the bottom of the positioning sleeve, and four sets of clamping grooves are formed around the periphery of the positioning groove; the first positioning structure comprises a positioning column and a mounting column, and the moun