Microseismic monitoring technology is an effective means evaluating the fracturing effect. Although there are many application cases of microseismic monitoring technology, a complete set of shale gas fracturing microseismic monitoring technology process has not been formed to support the more efficient development of shale gas (Maxwell et al. in Geophysics 75:75A129–75A137, 2010). To solve the problem of casing deformation and the production reduction of surrounding wells during shale gas fracturing, taking the actual well production in Weiyuan, Sichuan as example, the following steps are adopted in this paper: 1.Study the shale gas fracturing microseismic monitoring results; 2. Optimize fracturing microseismic monitoring technical process to accurately evaluates the fracturing reconstruction effect. 3. Analysis the casing deformation performance and cross well interference. 4. Explains the reasons of fracturing disturbance and casing deformation from the microseismic perspective. The microseismic monitoring results of platform X in Weiyuan area of Sichuan Basin in China are as follows: (1) The microseismic monitoring technology of shale gas fracturing which integrates various data such as seismic, fracturing engineering, tracer and post fracturing production, can effectively guide shale gas fracturing and provide technical support for shale gas development. (2) The shear slip of natural fracture inconsistent with the direction of fracturing fracture and the shear caused by fracturing fracture steering are important factors causing casing deformation. The number of casing deformation and its influence can be reduced to a certain extent by taking measures such as multiple temporary plugging and adjustment of fracturing fluid. (3) The accumulation of fracturing fluid can cause the production fluctuation problem among the surrounding wells.