The invention relates to a structure and process integrated design method for an FRP structural part. The structure and process integrated design method for the FRP structural part comprises the stepsof: (1), establishing a finite element model of the FRP structural part, performing parameterization of layer angle and layer thickness design variables, and establishing a material interpolation model; (2), performing finite element analysis on the structural part, extracting parameters required for calculating the sensitivity, and establishing a target function and a constraint condition on layer angle and total thickness design variables; (3), calculating the sensitivity of the target function and the constraint condition; (4), according to the sensitivity, iterating to obtain the optimalsolution of the target function by adopting a mathematical programming method, and updating a parameterization model of the layer angle and total thickness design variables; and (5), repeating the steps (2) to (4) till the result is converged or is up to the maximum iteration number, so that the optimal layer structure of the FRP structural part is obtained. Compared with the prior art, the structure and process integrated design method for the FRP structural part in the invention has the advantages that: structure and process integrated design is realized; and, on the premise that performancerequirements and manufacturing constraints are satisfied, the material utilization rate and the optimization design efficiency of the FRP structural part are effectively increased.