With the continuous deepening of the research on active safety technology of intelligent vehicles, the assembly rate of advanced driver assistance systems(ADAS) has greatly increased. Active safety performance testing and evaluation for intelligent vehicles is becoming more and more important. However, considering the cost issue, the vehicle-in-the-loop platform test is preferred, and many domestic and international test standards only test and evaluate a single assisted driving function, which is not enough to comprehensively evaluate the strengths and weaknesses of the active safety functions of intelligent vehicles. Therefore, following the actual situation of road traffic in China, we propose the China New Car Assessment Program(C-NCAP) to comprehensively evaluate the active safety functions of intelligent vehicles. Based on the active safety test section of C-NCAP, this study utilizes RTK high-precision positioning test technology for testing to evaluate the performance of 23 vehicles equipped with ADAS. Based on the test results, the active safety system technology of domestic intelligent vehicles is analyzed and evaluated.