Abstract: During the installation process of open-off cut equipment,the process flow of first brush expanding and then installing the bracket and other equipment is often used,which is difficult to effectively alleviate the difficult problem of tense mining and excavation replacement.In response to the problems of rapid construction and equipment installation in working face open-off cuts of Fucun Coal Mine,through theoretical calculations and on-site practical research methods,the relationship between open-off cut brush expanding and equipment installation is coordinated.The open-off cut construction process of brushing while installing is proposed,and the integrated construction technology of brushing while installing is put forward.The support scheme of "active permanent support+temporary support" for open-off cuts is studied and obtained,and the support parameters are calculated.The on-site tests show that after adopting the integrated open-off cut construction technology of brushing while installing,the bracket installation work on working faces is completed in advance,the displacement amount of the roofs and floors of the open-off cuts and the two sides are reduced to 44 mm and 13 mm,respectively,with significant support effects.