Ethernet transmission device based on cable television coaxial cable

The utility model relates to an ethernet transmission device based on cable television coaxial cable, including home plug AV device and at least one user terminal, the input of said home plug AV device is used for the mixed output of directness and head end to link to each other, and its characteristics are: still include the coaxial switch of baseband, the TV output of homeplug AV device with the TV input of the coaxial switch of baseband links to each other, the ethernet output of homeplug AV device with the ethernet input of the coaxial switch of baseband links to each other, the multichannel F type of the coaxial switch of baseband connects signal output part and is connected with a plurality of user terminal respectively through cable television coaxial cable, the multichannel F type of the coaxial switch of baseband connects the composite signal that signal output is the ethernet signal of cable television signal and baseband. The utility model discloses can overcome ordinary home plug AV separates to access and must concatenate the not enough of intermediate equipment and network transmission line in addition when needing external a plurality of user terminal behind the signal.