Based on the dike constructed by explosive squeezing mud and stone-filling method in deep soft ground of No. 4 & No. 5 berth at Kemen port, Luoyuan bay, Fujian province, this paper establishes the stability analysis model of dike by Midas/GTS finite element program. The safety factors of stability are solved based on the strength reduction theory, and the effects on stability of relevant parameters of filling stone are discussed.