This document discusses using the accident reconstruction software Pc-Crash to simulate a vehicle collision accident that occurred in Shanghai, China between a four-wheel vehicle (Santana) and a two-wheel electric bicycle. The simulation aimed to reconstruct the accident process and determine the cause. Parameters were inputted into Pc-Crash based on evidence from the accident scene. The simulation matched the actual vehicle damage and determined the speed of the Santana was approximately 65km/h at the time of impact. The reconstruction provided effective information to analyze the accident.