The utility model provides a video wall output line fixed knot constructs has effectually solved among the prior art installation and has dismantled inconveniently, influence efficiency and influences wire rod and output port life scheduling problem, it includes base and mounting panel, and the base is adj. Tabular for the bar, sets up two trompils that are greater than host computer output DVI interface on the base, and first recess has been seted up at the upper and lower both ends of trompil, and first recess top is run through has the connecting pin, is connected with the mounting panel on the base, and the mounting panel includes the little mounting panels of two concatenation formulas, is equipped with the DVI interface on the mounting panel, and there is a DVI interface end of extension mounting panel opposite side depths, and the mounting panel is connected with the base at the connecting rod of base both sides through articulating, the utility model discloses simple structure has increased and makes the installation of video line and maintenance become convenient after fixed knot constructs, can install and dismantle very fast, and it is extravagant to have reduced the unnecessary time, and stability is higher after increasing, reduces the pressure of output, and the life -span of wire rod can prolong.