PURPOSE: To facilitate separation and recovery of a lens or a lighting fixture body at the time of disassembling of a vehicle by injecting a room temperature curing type sealant to the connection surface between the lighting fixture for a vehicle and the lens, bonding the connection surface, and curing it at room temperature.

CONSTITUTION: A lens 10 is made of glass, and the whole of a cup-shaped lighting fixture body (reflector) 14 is made of plastic such as PP. Since metal such as aluminum is applied to the inside of the cup-shaped body, the connection source of the body 14 is metal or plastic covered with aluminum. The connection surface between the body 14 and the lens 10 is formed into a plane mating shape. Otherwise, one of the body 14 and the lens 10 is formed into a projection while the other is formed into a groove 12, so that the body 14 and the lens 10 can be engaged with each other. A room temperature curing type sealant 18 is injected into the connection surface between the body 14 and the lens 10, and then, the connection surface is bonded to be cured at a room temperature. Consequently, the sealant for a lighting fixture can exhibit sufficient adhesiveness, water permeation resistance and interface peeling performance.