Abstract: The fluid flowing state of coalbed methane is a phase parameter reflecting difficult or easy level for CBM flowing in medium.Based on comprehending the previous experience, and by interpreting and deducing the fluid flowing equation for coalbed methane, the limits of fluid flowing states are divided and the distribution characteristics of fluid flowing state of CBM in reservoir are related with permeability and migration distance is also obtained.It can provide greatly theory supports in drafting reasonable development plans for CBM and has great practical values.