Abstract:Grouting technology is an important and accessorial method to underground works for it has a good effect on reinforcement of soft rock,water blockage, subsidence control,leakage treatment,etc.. But,the grouting work cab not be properly evaluated because the evaluation technology of grouting result is not canonical and no standard can be employed directly. Based on a lot of engineering cases,the grouting effect evaluation technique is catalogued as 5 kinds:analytical method,check-up hole method,construction sampling method,change guess method,and geophysical prospecting method. At last,the effects of each evaluation technique are discussed with a key project;and the evaluation technique and standard of every grouting project are presented. The achieved results can provide references to the future grouting works.