Jilin Province is one of the "Three Golden Corn Belts" in the world, and the problem of seasonal straw surplus is quite prominent. In order to broaden the use of corn stalk, chopped corn stalk fiber with different proportions was mixed into the soil from Changchun area. Based on the unconfined compressive strength tests, the characteristics of its influence on the reinforcement effect of cement soil were explored. Through comparative analysis with basalt fiber reinforced cemented soil, the evolution law of the strength and stress-strain relationship of two kinds of fiber reinforced cemented soil with fiber contents and fiber lengths was studied, and the effects of interfacial shear strength and weak structure surface on the strength were deeply analyzed. The results show that both corn straw fiber and basalt fiber can improve the strength and ductility of cemented soil. The strength development law of these two kinds of fiber reinforced cemented soil is similar, both show the characteristics of increasing first and then decreasing. Under the experimental conditions, the peak strength, the optimal fiber incorporation ratio and the optimal fiber length are basically the same. The experiment result shows that it is feasible to replace basalt fiber with corn stalk fiber in cemented soil reinforcement, but the corrosion resistance and durability of corn stalk fiber need to be further studied.