This paper introduces some new methods for measuring parameters of the telescope system with CCD device such as OTF, parallax, diopter and so on. It doesn’t need man’s subjective judgment. The computer accomplishes the assignment to display, print and save the results automatically. So, these methods have some advantages: high accuracy, digital display, and autoimmunization. Basing on the mentioned theory analysis in the paper, we have realized the digitization checkout of a lot of parameters on same instrument.