In order to analyze the law of mining pressure in the fully mechanized mining face of Shengli Mine, the pressure detection points were designed on the hydraulic support of the working face and the single pillar. It could be concluded that, (1) Through the measured data of the hydraulic support on the working face, the pressure appearance characteristics of the working face during the mining process were obtained. The pressure appeared stable when the non-working surface was pressed. When the working surface advancement distance was less than 30 m, the pressure was 2~3 MPa, when the working surface was advanced to 30 m, the pressure on the working surface was gradually increased, and the pressure was stable at 4~5 MPa. ② It could be seen from the force curve of the single-pillar in the mining, the first roof weighting pace was 30 m, and then every 10 m of advancing with one periodic weighting. It could be seen that the working resistance of the support was large when the working face was first pressed, but it could also adapt to the actual situation of the roof pressure. In the process of actually observing the pressure data, it was found that the individual supports were not connected, resulting in excessive pressure on the side frame, which should be paid attention to in the future work.