Problems associated with non-sustainable use of fossil fuels have led to increased awareness and widespread research into the accessibility of new and renewable energy resources. As the renewable energy, biogas should be widely used for its advantages in environmental friendly, security and efficiency. But factors in policy and environment made the utilization of biogas hard to achieve in cold areas. This article focus on the problem, make conclusions and give advices based on the analysis of the example of China’s rural areas in the north. The exact information was obtained via questionnaire survey, aiming at promoting the utilization of biogas in cold areas.