Abstract: A working face passing through an abandoned roadway is a common engineering problem in the underground production process of coal mines. When the geological conditions of abandoned roadways are complex and dense, they can easily lead to instability of the surrounding rock, empty top operation of supports, and bottom leakage of supports, which affect the safe and efficient production of the working face. Taking the 5316 fully mechanized top coal caving working face of the Baodian Coal Mine as the research background, the coal based solid waste foam filling material, performance and superior ratio, surrounding rock deformation law, and control effect of the working face through the abandoned roadway group were studied by means of theoretical analysis, laboratory testing, physical simulation and field measurements. The test results show that when the dilution ratio of foaming agent is 20 times, the water cement ratio is 0.5, the content of foam stabilizer is 1%, the content of foaming agent is 1.0%, and the content of gypsum is 7%, the 28 day strength of cement foam filling material sample can reach 1.72 MPa; When the particle size of gangue is 0−0.3 mm and the content is 30%, the strength of gangue foam filling material sample can reach 1.53 MPa after 28 days; When the content of fly ash is 30%, the sample strength of fly ash foam filling material can reach 1.13 MPa after 28 days. The technical method of surrounding rock control of abandoned roadway group is proposed, which is mainly filled with coal based solid waste foam material, reinforced anchor cable and U-shaped steel beam to strengthen support, and the principle of abandoned roadway filling technology with coal based solid waste foam material and the design of main parameters for strengthening support are given. Through physical similar simulation tests, the variation range of the peak stress of surrounding rock of abandoned roadway group in different layers is 16.9−26.5 MPa, the variation range of the stress concentration coefficient is 1.61−2.53, the maximum subsidence value of the roof of abandoned roadway in the same layer is between 300−400 mm, and the maximum subsidence value of the roof of the underlying abandoned roadway is between 200−300 mm, and the intersection of abandoned roadway is prone to stress concentration, with large deformation. During the mining period of the working face, on-site monitoring data such as surface displacement of the surrounding rock of the abandoned roadway group, stress of the coal rock mass (filling body), roof separation and anchor rod (cable) load, and support working resistance show that the overall deformation control effect of the abandoned roadway surrounding rock is good, achieving safe and efficient production of the working face.