Home networking device applied to home networking

The utility model discloses a home networking device applied to home networking. The device comprises a plurality of shells with the same special structure, a networking module is arranged in each shell; the networking module is any one of a gigabit switch, a gigabit router and a cable television coaxial line networking module; therefore, a user can design the system according to own home application scene and the existing wiring; a plurality of corresponding networking modules are selected and are superposed and combined through the shell; therefore, complex wiring design is not needed, home networking can be achieved under the condition that different network devices do not need to be arranged at different positions of all floors/different rooms of a large house type, full coverage of a home network is achieved, user experience is improved, and space and resources are saved. In addition, the home networking device also comprises a power supply module, and the power supply module comprises a power supply sub