Aimed at the every key elements connected with the success of astronomical calibration,we performed the experiment research based on theory analysis to achieve the regular inspection and calibration of ship-borne optical measurement equipment.Firstly,we introduced the hardware principle of astronomical calibration technologies,software composition,and working procedure.Then,we focused on analyzing error separated arithmetic,and methods for solving error equation was brought forward based on singular value decomposition for the first time.Finally,a group of typical datum worked out from the experiments was shown.The calibration experiment results demonstrate that the calibration method can successfully separate 8 items of single error,and the repeatability of key items about many times of calibration is less than or equal to ±1″,which doubles the accuracy of actual angle measurement and is superior to the accuracy of normal calibration equipment.