The invention relates to an image sensing type handwriting input pen and a track correction method thereof, which belong to the technical field of computer peripheral equipments. The image sensing type handwriting input pen comprises a light emitting tube, a lens, an image sensor and a processor. The image sensor acquires images through the lens. The handwriting input pen further comprises a planar medium for writing characters on, and direction marks are arranged on the planar medium, a reference coordinate is predefined in a preset program of the processor (6) as a reference standard. Underillumination of the light emitting tube, the image sensor acquires images of directional marks of reflected light on the planar stadium and identifies the direction coordinate, then the identified direction coordinate and the reference coordinate are compared and the difference between them is calculated, and finally the difference between the direction coordinate and the reference coordinate is corrected. The invention has the advantages that angular errors generated in the moving direction of the handwriting input pen can be accurately adjusted and corrected in real time, thereby accurate dislocation information can be obtained accordingly, and hardware and structure can not be changed relevantly.