With the development of the domestic shipping industry,a large number of high-pile wharf urgently require maintenance.Establishing a scientific and reasonable performance evaluation method for high-pile wharf components is the prerequisite for accurately determining their maintenance needs.In order to find a method that can comprehensively evaluate the maintenance requirements of high-pile wharf components in all aspects,this paper conducts an in-depth study on the service performance of high-pile wharf components.It proposes a performance indicator system for high-pile wharf components and uses an improved analytic hierarchy process (AHP) to determine the weights of each indicator.Based on the fuzziness and randomness in the performance evaluation of high-pile wharf components,a performance evaluation method based on a cloud model is established.This method is applied to a structural evaluation of a container terminal in Tianjin,using the evaluation results of panels from section 29 to section 30 to determine the service performance status and provide repair recommendations for the panel.This approach offers a basis for maintenance decision-making of high-pile wharf.