The utility model discloses a hang and irritate boom support installation device, including preset on xuan guanliang the I -steel with be fixed in the braced system on the I -steel, braced system include the vertical rod and with vertical rod integrated into one piece's horizon bar, the vertical rod upper end be equipped with outside arch and with I -steel side matched with fixed block, the side of I -steel is equipped with along I -steel width direction's reinforcing plate, the fixed block with be provided with on the reinforcing plate its fixed screw and nut assembly together, the upper surface of horizon bar is equipped with the steel sheet, and the vertical rod was kept away from to the horizon bar one end is equipped with upwards protruding and block the piece with the steel sheet side offsets, cooperatees through fixed block and I -steel, can restrict the fixed block direction of height, reduces the condition that the fixed block breaks away from, can play the effect of location to the fixed block simultaneously, makes that screw and nut assembly's is fixed easier, block that the piece can be to the enterprising line -tying of steel sheet horizontal direction to the structural strength of people moving walkways support has been increased.