The existing structural monitoring methods are still unable to monitor the irregular berthing of wharf in real time.This paper proposed an inversion model based on support vector machine for real-time monitoring of ship impact force in overhead vertical wharf.Combined with the structural characteristics of overhead vertical wharf，the importance of wharf pile foundation is evaluated based on generalized structural stiffness，and the monitoring pile foundation is optimized.In this paper，the 10th structural section of Xintian Port Wharf Phase I in Chongqing is taken as the generalized research object，and the physical model of the wharf is constructed according to the scale of 1:20 to simulate the irregular berthing effect.The collected strain data of optimized pile foundation are trained and verified by inversion model.The accuracy of the inversion model for the position of impact force is 0.98，and the average relative error for predicting the strength of impact force is 0.234%.