Method and system for correcting OSD triggering region offset

A method and system for correcting OSD triggering region offset. Method comprises: when multimedia display device rotating is monitored, acquiring rotary angle parameter of multimedia display device; acquiring first coordinate parameter of OSD displaying region of multimedia display device according to rotary angle parameter; acquiring second coordinate parameter of OSD triggering region of multimedia display device, determining whether OSD displaying region coincides with OSD triggering region according to first coordinate parameter and second coordinate parameter, if not, redrawing OSD triggering region until OSD displaying region is detected coinciding with OSD triggering region, thus finishing correction of OSD triggering region offset. According to current screen rotation and coordinate parameter displayed by OSD, OSD triggering region is drawn by means of algorithm application, so OSD can be controlled and triggered accurately and normally, operation is simple, and present invention is convenient and practical.