Abstract: Based on the intensity distributing function, we simulate the double-slit electron diffraction by using the visual Basic program. The electron diffraction pattern is vividly reconstructed in the simulation, and electrons can appear on the screen one by one by controlling the generation speed of electron. This simulation helps one to understand the probability property of electron wave. The program is simple and easy to learn, which is convenient for further development.

Key words: double-slit electron diffraction, intensity distributing function, computer simulation, visual Basic program