In order to optimize the production process of 7075 aluminum plate, a rolling test was conducted with the cumulative reduction rate of 92% for four passes+secondary heating+four passes, and the solution and aging parameters optimization test was conducted on the unqualified finished plates. Then, the microstructure of the finished plates was observed by polarizing observation with anodic coating, and the mechanical properties, Brinell hardness testing, elemental energy spectrum analysis and electrical conductivity measurement of the finished plates were conducted. Furthermore, the mechanical properties measurement results were compared with those of 7075 T6-treated aluminum plate in GB/T 3880.2—2012. The results show that in the 8-pass rolling process of 7075 aluminum plate, when the cumulative reduction rate is 71% in the first four-passes before secondary heating, the mechanical properties of the finished plate meet the national standard requirements, which is the optimal rolling process. For the rolled plate with the cumulative reduction rate of 62% in the first four-passes before secondary heating, better comprehensive mechanical properties are obtained by the solid solution at 500 ℃. Thus, the different cumulative reduction rates before and after secondary heating have a significant impact on the mechanical properties of the final finished plate, which can be used as a process mean to adjust the microstructure and properties of the finished plate. At the same time, when the rolling process is not ideal, the mechanical properties of the finished plate can meet the national standard requirements by optimizing the solution and aging process.