Coal bed methane (CBM) is a kind of unconventional natural gas energy that is mostly made of methane and is held as an adsorbed substance in coal seams. It has received a lot of attention both domestically and internationally due to its benefits of plentiful reserves and clean combustion. China has the third largest CBM deposits in the world, and the exploitation of CBM is expanding due to the increased interest in CBM in recent years, although the utilization rate is consistently low. The fundamental cause is a lack of effective low-concentration CBM utilization, where oxygen is essential to limiting safe CBM utilization. Deoxygenation is a requirement for safe utilization since low-concentration coalbed methane poses an explosion danger due to the presence of oxygen. This work introduces the basic principle and characteristics of combustion deoxidation, including the coke combustion method, catalytic combustion method, and chemical looping combustion method, with emphasis on carbon material, catalyst, oxygen carrier analysis of the current research status. In particular, the new technology of chemical looping combustion is discussed and analyzed. The findings demonstrate that the coke combustion process has a better deoxidation effect but has the shortcoming of high deoxidation temperature (650~1000℃), the key of current research is to improve the performance of carbon material and effectively control the reaction temperature. Methane will be consumed during catalytic combustion deoxidation, and the catalyst is easily poisoned and rendered inactive, the key to this technique is to investigate and develop a powerful catalyst, and this technique is not suitable for treating low-concentration CBM deoxidation. For the chemical looping combustion deoxidation method, the oxygen carrier material is inexpensive and simple to get, the reaction temperature is low, and this method can retain the maximum amount of methane. The thorough comparison reveals that deoxygenating low-concentration coalbed methane is more effectively accomplished using the chemical looping combustion approach.