An LED light device module includes a housing, a light source structure and a power supply. The housing has a cover body and a base body. The cover body is located on the base body. The light source structure is located in the housing. The light source structure includes a cooling device, an LED light source device and a secondary optical device. The LED light source device and the secondary optical device are located on the cooling device. The LED light source device is located between the cooling device and the secondary optical device. The power supply is located in the housing and electrically connected with the light source structure. Thereby, the system cost is reduced, the total weight is low, it is easy to manufacture and maintain. The LED light device module can be expanded and the outline of the LED light device module can be designed flexibly.