The invention provides a human-computer interaction device provided with one host, two screens for outputting and two keyboards for inputting. The device comprises the host and is characterized in that a video card with two interfaces is arranged in the host, double keyboard interfaces are also formed in the host, and the host is connected with the two keyboards through the double keyboard interfaces and is connected with two displayers. One host is equipped with the two displayers and the two keyboards. One of the two displayers is used by a window officer, the other one is used by a client, and synchronous display is realized. One of the two keyboards is used by the window officer, and the other one is used by the client. Through usage of the device, effective interaction of the officer, the client and business information in a window service is realized, the client can directly participate in the business handling process, and the officer and the client can directly read the business handling process conveniently through the two displayers. The client can supervise the business handling correctness of the officer from the side, and the probability that the officer makes an error during information handling and the client cannot find the error on the spot is eliminated.