This paper analyzes and compares the performance test methods of new mixed concrete in Chinese and American standards from the perspectives of standard setting, concrete density, air content of concrete and mortar. The comparison results show that when dispose experimental results, the Chinese and American standards toward concrete density test are different. The American standard requires the test results accurate to 1kg/m3, but the Chinese standards require the test results accurate to 10 kg/m3. When measuring the air content of concrete and mortar, American standard has correspond measuring method for different kinds of concrete. However, the Chinese standard only recommends use gas cylinder in the measurement of air content. It is suggested to improve the specialty of instrument selection, the rigor of experimental procedures and the accuracy of experimental results in the future revision of Chinese regulations. To promote our industry standards more advanced, standardized and scientific, we hope this new standard can promote the progress of industry.