Abstract: A data analysis system of roadheader status monitoring was built by use of data mining technology. The system collects status parameters of mechanism system, hydraulic pressure system, electrical system and transmission system of roadheader through data collection system of roadheader status monitoring, sends the parameters to data analysis platform of roadheader status monitoring through Internet, and mines and analyzes the parameters by use of data mining technology on the data analysis platform. The system can realize functions of remote maintenance and fast fault location and processing, and updates analyzing experience base of working status data of roadheader, which provides knowledge experience support for fault processing of roadheader.