Founded in 1956, Xian Branch of China Coal Research Institute is a large research institution on coal mine safety and geological exploration and was transformed into a state owned important born enterprise in 1999. Xian Research Institute Of China Coal Technology & Engineering Group Corp. is administrated by the State Owned Asset Supervision and Administration Commission of State Council.Our Branch is mainly engaged in basic application research on coal geology, hydrogeology, engineering geology, geophysical instrument and exploration, drilling technology, geo-technical engineering, environmental engineering, coal bed methane resources assessment and development, and other related disciplines. Our main business is on technical development and consultant service, product development and production, as well as engineering contracting which covers almost the main disciplines and technical fields in coal resource development and geological safety guarantee.There are almost 850 employees and 10 institutes, including the Institute of Geology, Institute of Hydrogeology, Institute of Drilling Technology, Institute of Seismic Exploration, Institute of Electrical Exploration, Institute of Geophysical Instrument, Institute of Engineering Geology, Institute of Environmental Protection, and Shaanxi Rock Geo-technical Engineering Company in the branch. There is also Rig Testing and Checking Center affiliated to the State Administration of Work Safety Supervision and the State Administration of Coal Mine Safety Supervision, Mine Water Hazard Prevention and Identification Center affiliated to State Safe Production Technical Ensuring System and Sub-center of Mine Water Hazard Prevention and Rescue Technology Research affiliated to State Mine Rescue Center. Our Branch is an authorized unit approved by Academic Degree Committee of the State Council to enroll students for doctor degree and master degree. Now we have 10 supervisors for PH.D students and 120 persons with PH.D or master degree or to be PH.D and masters.Our Branch is a unit linked up with the