Portable nail polishing pen

The utility model discloses a portable nail polishing pen. The pen comprises a pen sleeve extending in the left-right direction. A motor is arranged in the pen cap; an output shaft of the motor is intransmission connection with a polishing head, the polishing head is arranged on the outer side of the left end of the pen cap, a battery is arranged in the pen cap and on the right side of the motor,the pen cap is connected with a control switch, the battery is electrically connected with the control switch, and the control switch is electrically connected with the motor. The motor and the battery are integrated in the pen cap, the battery stores electricity to provide electric energy for the motor, and the control switch controls the motor to drive the polishing head to rotate, so that thepolishing pen can work independently without being connected with a power supply box, and is convenient to carry and flexible to use. 一种便携式指甲打磨笔，包括沿左右方向延伸的笔套，所述笔套内设有电机，所述电机的输出轴传动连接有打磨头，所述打磨头设于所述笔套的左端的外侧，所述笔套内设有电池，所述电池设于所述电机的右侧，