Method for simultaneously controlling large screen by multiple seats based on KVM seats

The invention discloses a method for simultaneously controlling a large screen by multiple seats based on a KVM seat, relates to the field of computer control equipment, and provides a scheme aiming at the defect that a plurality of seat equipment cannot be displayed on the same display large screen by using respective mice at the same time. Comprising a plurality of seats, RX equipment, an electric signal source, TX equipment, seat equipment, a large screen and windows corresponding to the seats. The TX equipment is respectively connected with the electric signal source and the seat equipment, each RX equipment is respectively connected with the corresponding seat and the seat equipment, and the seat equipment is respectively connected with the TX equipment, the large screen and the plurality of RX equipment; each RX device is also connected with a keyboard and a mouse; the method further comprises a mouse ownership permission distributing method and a windowing method. The window opening device has the adva