In order to solve the problems that the tip resistance of the cone is too large to be touched in the static sounding test of some strongly compacted sandy soil foundation,and how to choose correct dynamic compaction sand surface evaluation indexes,through the dynamic compacted sandy soil foundation reinforcement effect test results analysis and test results data regression methods,it is clear that the static penetration test and the standard penetration test are consistent in evaluating the effect of consolidation of compacted sand foundation,however,the correlation between the secondary deformation modulus and the test results of the foundation coefficient is poor and cannot be replaced.