A system for vibration inspection of a vehicle for inspecting a quality of the vehicle assembled in a vehicle factory's in-line may include an inspection table for guiding and fixing the vehicle to a predetermined inspection position, a sensor detachable robot configured for attaching or detaching vibration sensors to various parts of the vehicle, a vibrating robot configured of generating vibration for the vibration inspection of the vehicle, and an inspection server that analyzes the vibration signal received from the vibration sensor during the vibration inspection of the vehicle, and determines the vehicle to be in inspection pass if the vibration signal matches the normal signal set according to a natural vibration frequency characteristic of each part of the vehicle, and determines the vehicle to be in inspection fail if the vibration signal does not match the normal signal.