The invention discloses a board surface local sandblasting device. The device is characterized by comprising a machine base, a sandblasting structure arranged on the machine base, a sandblasting supply structure connected with the sandblasting structure and a workpiece operation station arranged at the front end of the sandblasting structure; the sandblasting structure comprises a sliding base arranged in the machine base, a sandblasting collection cavity connected to the sliding base, a spraying material excitation cavity connected with the front end of the sandblasting collection cavity and a spraying material head structure connected to the front end of the spraying material excitation cavity. The workpiece operation station comprises a sandblasting chamber which is arranged at the front end of the machine base and parallel to the spraying material head structure, a protection plate arranged in the sandblasting chamber, a workpiece containing frame arranged at the front end of the sandblasting chamber and a workpiece frame structure connected with the inner sides of the upper end and the lower end of the sandblasting chamber; the board surface local sandblasting device has the beneficial effects that according to the local sandblasting device, the locally-cut board body set on the board can be sprayed, the cost is saved compared with the whole sandblasting manner, and the board integrality is effectively ensured.