Abstract: In order to improve the automation level of the fully mechanized mining face, this study, based on the coal mining geological conditions of the 8127 fully mechanized mining face in the C2# layer and its upgrade objectives, focuses on key technological applications such as the three-machine matching transformation, the development of an automated follow-up support system, the construction of an unattended transportation system, and water treatment and anti-pollution management. After the intelligent transformation, engineering application verification shows that the monthly production of the 8127 fully mechanized mining face in the C2# layer increased by 47%, and the number of personnel decreased by 44.4%, achieving the goal of reducing labor while increasing efficiency. This study can provide a reference for the intelligent transformation of fully mechanized mining faces under similar conditions.