The research on the implementation of computer analysis algorithms in BPA transient programs focuses on the application of efficient computer algorithms to the transient analysis of power systems, which is of great significance to improve the accuracy and efficiency of power system analysis. BPA software is the most important part of power system analysis. The transient analysis function of BPA is especially used to predict and deal with the dynamic performance after large disturbance of the system. The key of this project is to select and optimize the solution algorithms that are suitable for BPA as much as possible, such as the numerical methods and parallel methods of calculation, and then fuse these fast and accurate algorithms into BPA to undergo a series of strict tests, in order to ensure the precision of the algorithms and the efficiency of the analysis. Through the experimental data, it can be seen that the computer analysis algorithm from BPA transient program to the improvement of the corporate net profit, the minimum value of 165.88%, the maximum value 293.87%. Therefore, computer analysis algorithm from BPA transient program to the corporate profits, in actual use, the effect is self-evident.