Aiming at several reinforcement methods with many hydraulic mud fill projects around coastal areas but different effects,we combine with a certain port engineering,and use four different reinforcement methods to reinforce hydraulic mud fill，such as no sand bed vacuum preloading method,no sand bed vacuum preloading method from shallow to deep(direct draining and secondary processing),sand bed vacuum preloading method,and sand bed vacuum-load consolidation.We use vane shear tests to analysis the reinforcement effect in depth direction,and obtain the conclusion that no sand bed vacuum preloading method from shallow to deep(direct draining and secondary processing)is better than others in economical efficiency and reinforcement effect aspects.