Based on the evaluation index system established for measuring the resource environmental bearing capacity (REBC), this paper measured the REBC of BeijingTianjinHebei region by applying the state space model and analyzed their driving factors by using the Tobit model. The results showed that the REBC of BeijingTianjinHebei region was in the available state and at the rising stage as well during 2000-2012. The social economic growth had great pressure on the resources and environment. The bearing ratios of the REBCs of Beijing, Tianjin and Hebei all presented a U curve and located at low levels, which meant that there was high REBC potential in these regions. Both of the permanent population and the urban residents ‘Engel’s coefficient were the influence factors of the REBC of BeijingTianjinHebei region. The population problem was likely to become the bottleneck to restrict the regional social and economic development, and also threaten the resources and environment. The specific driving factors of the REBC were different in Beijing, Tianjin and Hebei. For example, energy consumption per unit of GDP only had significant impact on Tianjin. At last, the paper proposed that the three regions should complement each other in resources and environment, social development, and economic structure, also the REBC should be taken a reference in decision and policy making.