Abstract: A nail polisher with UV lamp, comprising: a shell; a nail polishing assembly; a motor; a UV lamp assembly; a PCB board; a power supply assembly; the shell is provided with an accommodation cavity, and both ends of the shell are respectively provided with a first through hole and a second through hole communicating with the accommodation cavity; the nail polishing assembly comprises a transmission mechanism installed in the accommodation cavity. With the connection and cooperation between the motor output end and the transmission mechanism, the motor can drive the transmission mechanism to rotate, and then drive the polishing head to rotate, thereby polishing the nails. As for the UV lamp assembly, it is disposed in the accommodation cavity and close to the second through hole for curing the nail polish. It can avoid damaging the back of the hand and only treat the nails, which improves safety.