A method of testing a touch screen apparatus and precision

The present invention provides a method for testing the accuracy of a touch screen, comprising the steps of: establishing a virtual grid on the touch screen, to the virtual grid point intersection test; clicks obtaining real-time coordinate of each of said test point in response to the touchscreen ; theoretical coordinate difference between the test point coordinates and comparing each of said corresponding real time; according to each of the difference determination accuracy of the touch panel meets the requirements; issuing a different alarm depending on the result of determination. The present invention also provides a touch screen accuracy testing apparatus can accurately test the accuracy of the touch screen.