Abstract: In order to quantitative greenhouse gas (GHG) emissions at the organization level and provide the most efficient GHG mitigation measures for enterprise?,a scale dairy farm was studied in Baoding of Hebei Province. Based on scenario analysis, the detailed greenhouse gas emission and removals inventory were assessed at the organization level using methodology approved by executive board (EB) of clean development mechanism (CDM) under United Nation framework convention on climate change (UNFCCC), IPCC emission coefficient and related literature. Case study indicated that using traditional operating management and current manure management system, the greenhouse gas emission was estimated to be 11 333.2 t CO2-e per year or 4.9 t CO2-e/head per year with 2 300 dairy cattle. Some mitigation measures have been proposed to reduce GHG emissions. It has significance in emission reduction of same scale dairy farm.