Based on vibration parameters of pile and projection pursuit method, this paper carries out a prediction analysis on the bearing capacity of pile. Taking the maximal value of impact pile driving force, the maximal energy value of pile transferred by hammer, the maximal dynamic displacement of pile peak, the maximal value of Zv, depth of pile in soil, pile diameter as independent variables, and bearing capacity of pile as dependent variable, the prediction model of bearing capacity based on projection pursuit method is obtained. It is found that, the relative error of prediction value (or fitting value)of bearing capacity of pile is ±0.071 83%compared with the observed value by dynamometry for 32 groups of independent variables training model, and the relative error were ±7.352 97%，±6.011 21% respectively compared with the observed value by static test and dynamometry for 6 groups of independent variables validating projection pursuit model. The following conclusion can be drawn that, the prediction model is accurate and credible, and the projection pursuit method is a better method, and it is worthy to spread its application in the prediction analysis of bearing capacity of pile.