Zeeman effect experiment (ZEE)，the electron charge-mass ratio was calculated by measuring the wavelength differences of the split mercury-green spectral lines in a magnetic field． In the computer-aided Zeeman effect experiment (ZEE)，the Fabry-Perot etalon (F-P)isoclinic interference image was collected to the computer by using CCD image acquisition card;and then by using the ZEE analysis software，the image was processed，the wavelength differences of the split light spectral lines were measured，the electron charge-mass ratio was calculated． In the virtual simulation ZEE，the whole process simulation of ZEE，from instruments placing，debugging，to the measuring and data processing，was realized with the help of the virtual simulation experiment system provided by Keda Aorui Science and Technology Ltd．The computer-aided ZEE overcomes many shortcomings of manual measurement in the past，but it has not solved all the defects and brings some new problems．The virtual simulation edition of ZEE has almost solved all the problems encountered in the traditional ZEE．As long as the necessary steps are in place，ideal experimental results can be obtained．Through the research and analysis，it is deeply recognized that the two experimental methods cannot completely replace each other，but can serve as beneficial supplements．