Abstract: Reinforced concrete pile is the main load-bearing components of high pile wharf, the high pile wharf by near field water explosion load, the need for power reinforced concrete pile under explosion load response and failure mode were studied, and then the antiknock performance and safety of high pile wharf were evaluated. In this paper, the failure modes of a reinforced concrete pile near a high pile wharf under water explosion were studied by means of numerical analysis. By comparing with the empirical formula of the analysis, the numerical analysis method was validated. 3D analysis model of reinforced concrete pile under explosion load was established, and the effects of the number and radius of explosion source depth and other parameters on the reinforced concrete pile dynamic response and failure mode were researched. Based on the results of numerical analysis, the safety range of steel antiknock concrete pile was obtained, and the research results can provide reference for the design and analysis of high pile wharf explosion.