The port construction is continuously developing towards the deep-water area.When the breakwaters are built in the sea area with poor natural conditions,the mass of protection block is increasing,and the steel bar is usually used to enhance its anti-cracking ability.In order to solve the precast construction difficulty of super-large accoropode caused by the reinforcement,we add anti-cracking fiber instead of reinforcement.By model test and theoretical calculation and numerical simulation method,we analyze the cracking risk of super-large accoropode in prefabrication and hoisting process.The results demonstrate the feasibility of removing the steel rebar of super-large accoropode.