In　order　to　reduce　air-conditioning　energy　consumption　of　original　computer　room,　an　isolated　heat　exchange　system　is　added　to　Beijing　Unicom　computer　room.　The　steady-state　model　of　the　heat　exchange　system　is　built　using　mechanism　modeling　method　according　to　actual　operating　data　and　the　basic　principles　of　heat　transfer　process.　The　optimal　operating　point　of　the　system　is　obtained　with　the　help　of　Matlab　optimization　toolbox.　By　comparing　the　data　before　and　after　optimization,　it　shows　that　the　design　method　for　solving　operational　problems　of　heat　exchange　system　is　very　effective.　©　2010　IEEE.