Abstract:   To settle the current problems in the test and quality evaluation of GNSS receiver, the paper proves the necessity of constructing GNSS receiver test system which is under unified test and evaluation standards.On the basis of analyzing the architecture of Software Defined Radio, combining the feature of GNSS receiverin the test and quality evaluation, the paper put forward GNSS Receiver Test System Base on Software Defined Radio. By constructing this kind of test system, the functionalities and performance of GNSS receiver can be tested and evaluated comprehensively and accurately in a standardized way.