A scheme of an angle measurement circuit for the two-speed resolver is designed, which includes the decoding and measurement of the precision. The 16-bits data of parallel communication of the two AD2S82A is read, corrected, and assembled by CPLD. According to the requirement of the main system, the CPLD completes the pretreatment of the data from the AD2S82A and outputs the parallel data of the angle information, the bits of which are up to 21-bits. With the CPLD, this angle measurement system becomes one single peripheral of the main system. A scheme of measurement test is carried out with collimator and prism in the laboratory. The results achieve the designed functions of the scheme completely and the error by Root Mean Square (RMS) of the single angle measurement circuit is 20 arcseconds, which reaches 9.46 arcseconds after correcting the systemic error with software. Lastly, the causations of the systemic error of the angle measurement circuit are indicated.