介绍标准贯入法检测喷射混凝土早期强度的必要性及检测原理。通过室内试验和现场试验相结合的方法总结标准贯入法的应用方法,阐述标准贯入法回归曲线的建立过程，结合在工程现场的应用情况分析影响标准贯入法的因素。通过在工程中的实际运用，取得了很好的效果。

The necessity to test the early strength of shotcrete by standard penetration method and the principle of the test method are presented in the paper. The application of standard penetration method is summarized on basis of laboratory tests and field tests. The establishing process of the regression curve of standard penetration method is presented. Factors that have influence on standard penetration method are analyzed on basis of its application in the job site. The practical application of standard penetration method in the test of the early strength of shotcrete has achieved good results.