Abstract: Using the well and seismic data,the occurrence and distribution of coal beds in Hailar Basin are evaluated and predicted in this paper.Combined with parameters of gas content,the resource prospect of coalbed gas is evaluated.The results indicated that the amount of coalbed gas resource of Hailar Basin is about 10.79×1011 m3 and is far more greater than that of the whole northeastern China evaluated by precursor.It is suggested that the resource potential of coalbed gas in northeast China has greater increasing space if considering the oil and gas bearing basins where the coal bed has been buried relatively deep.The comparison with American coal bearing basins where the coalbed gas has been exploited successfully shows that the resource potential of Hailar Basin,especially the Huhehu depression,is worth of recognition.