Abstract: The surrounding rock of an iron ore is broken and the stability is poor. It is planned to use the bottom ore drawing and subsequent filling mining method. For this reason，the optimization research on the layout of the mining and cutting engineering and the support scheme is carried out. Firstly，aiming at the complex broken ore body，combined with the requirements of the bottom ore drawing and subsequent filling mining method，on the basis of the existing excavation roadway，the engineering layout forms such as-230 m bottom structure，-215 m induced bottom pulling，-185 and-170 m cutting side are proposed. Secondly，combined with the stability of surrounding rock，engineering importance and mining conditions and other factors，it is proposed to strengthen the support technology of mining roadway under the geologi⁃ cal conditions and the use conditions of general broken surrounding rock，local broken surrounding rock and obvious deformation. Finally，the excavation method and blasting parameters are optimized. It has been proved by practice that the layout and support of mining roadway have achieved good results，and the re⁃ search results can provide reference for similar mines.

Key words: bottom ore drawing and subsequent filling mining method, complex broken orebody, ar? rangement of mining-cutting project, support technology