On the basis of inheriting the selective bioclimate classification framework of previous authors, analyze and evaluate the characteristics of climatic factors Northeast territory. The authors have developed criteria classification system for bio-climate vegetation in Bac Kan province on 4 factors: the annual average temperature, average rainfall years, the length of the cold season and long dry season. Map of natural vegetation bioclimate Northeast Vietnam, scale 1:500,000, shows to 6 natural vegetation types, 20 diffirent types of bioclimate, with 117 separate zoning behavior. Map showing bioclimate rule bioclimate resources division of the territory of the Northeast. The results of the study subjects classified bioclimate will be the basis for important scientific research classification of natural vegetation, on the other hand it is also the basis for the research, development proposals some agricultural crops, forestry Northeast territory.