Writing pen obliquity correcting method

The present invention discloses a writing pen obliquity correcting method belonging to the field of peripheral equipment in a computer input filed. In the writing pen obliquity correcting method, firstly, obliquity correcting datum points are displayed by a obliquity correcting statement interface, and a writing pen is preset at the obliquity of a display interface to click the obliquity correcting datum points; then, the offset value of the obliquity correcting datum points and actual points, and the original value is corrected by the offset value in a surface reference frame to enable the obliquity correcting datum points displayed on a preset obliquity lower display and the actual points to superpose; if the obliquity correcting datum points and the actual points also have offset, the obliquity correcting datum points are continuously clicked according to a preset angle to correct until stated precision is obtained. The writing pen obliquity correcting method can be directly carried out at a system operating interface, and the correcting result is obtained immediately. The operation is simple. The software cost does not need to be increased, so the writing angle of the writing pen can be conveniently corrected, and errors and mistakes are avoided.