A multisource signal access device

The utility model relates to the field of multimedia communication and especially relates to a multisource signal access device. The multisource signal access device is not only capable of performing switching processing on the input signals inputted by signal input terminals, but also is capable of performing synthetical processing on the input signals inputted by the signal input terminals. The multisource signal access device comprises more than one signal input terminals, signal distributors, a signal synthesizer, and a first signal selector. The number of the signal distributors is the same as that of the signal input terminals and each signal distributor is connected with a corresponding signal input terminal. Each signal distributor receives a single signal outputted by the signal input terminal connected with the signal distributor and transmits the single signal to the signal synthesizer. The signal synthesizer transmits an acquired synthesized signal and the single signals outputted by the signal distributor to the first signal selector. The first signal selector selects the synthesized signal or the single signals to output.