Abstract: A front wheel locking mechanism of power scooter includes a sleeve, a steering mechanism, and a positioning mechanism. The sleeve is mounted at the front end of a frame of power scooter, and the steering mechanism includes a shaft sleeved inside the sleeve and formed with an unround-shaped positioning slot. The positioning mechanism is mounted on the sleeve and includes a pin having an enlarged anchoring head contoured with the unround-shaped positioning slot. The enlarged anchoring head can be pressed into the shaft through the unround-shaped positioning slot only in a first angle, and then keeping the enlarged anchoring head continually anchoring inside the shaft by turning the pin driver away from the first angle. By this locking mechanism, the front wheel set can be easily prevented from freely swiveling around, during a user is taking apart, re-assembling, folding or unfolding the frame of power scooter.