Self-management plan for GHG (Greenhouse Gas) reduction should be prepared in academic facilities, which occupy a large amount of energy consumption. In this study, a university was chosen as one of the major academic facilities and its energy consuming pattern and GHG emission were analyzed. The results have shown that annual CO2 emission from university buildings was 10,452 ton-CO2 (0.65 ton-CO2/m), and dependent upon 78.0% electricity, 20.5% LNG and 1.5% oil, respectively as energy sources. According to more detail analysis by usage of energy consumption, appliances occupies 36.7% followed by gas heating (18.9%), lighting (18.6%), heating with electricity (12.5%), cooling with electricity (10.2%), transportation (1.5%), gas cooling (1.2%) and cooking (0.4%). Furthermore, annual CO2 emissions per unit area and a student by electricity usage were evaluated to 51.30 kg-CO2/m and 981.86 kg-CO2/capita, respectively and those by LNG usage were 14.61 kg-CO2/m and 241.01 kg-CO2/capita.