In order to improve the resource utilization rate of mudflat sludge,the engineering availability of mudflat sludge can be improved by adding a curing agent prepared by cement,slag,gypsum,etc.according to a certain mix proportion.Explored the solidification effect of curing agents using cement,slag,and gypsum as raw materials.The results indicated that the solidification a-gent with the optimal mechanical performance contains a cement-slag-gypsum ratio of 22.5%-70%-7.5%.In the case of 20%opti-mal solidification agent,the unconfined compressive strength of beach silt after curing for 3 days,7 days and 28 days is 1.51 MPa,2.03 MPa and 3.37 MPa,respectively.Micro-analysis result shows that the hydration products in the solidification agent are com-bined with silt particles to improve the overall compressive strength.Moreover,solidification agent can effectively improve the engi-neering availability of beach silt and take into account the engineering economy at the same time.