Through the theoretical calculation, mine pressure monitoring analysis, on-site measured data analysis and other methods, the research and analysis of the 621 intelligent fully mechanized mining face of Huangling Mining Company's No. 1 coal mine working cycle pressure was conducted, which filled the blank of research on mining pressure law of intelligent comprehensive the working face in Huangling mining area. At the same time, the working resistance frequency of the working surface of 621 working face was normalized by data monitoring. The average dynamic working resistance of the supporting frame did not exceed the rated value, indicating that the mine was equipped with intelligent supporting bracket type, and the design was reasonable, the support strength of the support was reliable, and the support form was stable, which could meet the actual production support requirements, and provided a new evaluation idea for the reliability and adaptability analysis of the hydraulic support of coal mining face.