With the development of large-scale wear debris, the demand for condition monitoring of mechanical devices increases accordingly. The fast detection device of lube oil wear debris is intended for the mechanical equipment lubricated with grease, collecting information on the abrasive particles in the equipment lubricating grease, and consequently monitor the status of the equipment. The rapid detection device needs a fitting lighting environment to collect the abrasive particle information; therefore, it is necessary to research into the lighting system of the fast detection device.