Based on 2007 and 2012 input-output tables, the paper analyzes and demonstrates the structure of carbon emissions intensity in He Bei province by using input-output technique and MMIA method. Analysis results shows that: In He Bei Province carbon emission intensity of end using structure, input technology reduction in total carbon discharge plays an important role in the change,through the improvement of production technology to improve production efficiency or change the input structure of carbon row total strength reduction is important. In the structure of total output, a total output energy consumption decline still is the main cause of carbon emission decreased, and the input structure and industrial structure change is disadvantageous for emission reduction, especially the negative effect of structural change is very obvious.