Abstract: The loess is structural and difficult to compact. How to solve the problem of loess compaction has always been a challenging technical problem in treatment of loess site foundation. In this study, the Roadyes^TM curing agent combined with lime or cement is used to modify loess under different combinations. Through the compression and triaxial shear tests, the differences of compression and resilience indexes and shear strength indexes of the modified loess with different additive combinations are studied. The results show that for the Roadyes^TM-modified loess with lime or cement respectively, the modification effects are not better with the increasing dosage of the curing agent. Among them, the combination scheme of adding 0.25% Roadyes^TM and 3% cement is better than the 3% cement-modified loess without Roadyes^TM, and it can significantly improve the strength index of the remolded loess. With the extension of the curing period, the modified loess develops towards hard and brittle. The research results may provide important reference for the application of the Roadyes^TM-modified loess with lime or cement.