The invention provides a coal-bearing stratum coal, oil and gas resource exploiting method and device. The method comprises, according to the occurrence characteristics of coal resources and oil and gas resources in a coal-bearing stratum, determining a coal stratum to be exploited in the coal-bearing stratum and meanwhile determining coal resource exploiting processes as well as oil and gas resource exploiting processes; according to the occurrence characteristics of coal resources and oil and gas resources of the coal stratum to be exploited, determining coal exploiting areas and oil and gas corridor areas; according to the coal resource exploiting processes and the oil and gas resource exploiting processes, determining coal resource exploitation in the coal exploiting areas and oil and gas resource exploitation in the oil and gas corridor areas. The coal-bearing stratum coal, oil and gas resource exploiting method reduces resource damage and waste caused by disordered development, reduces accidents and improve the resource development and utilization efficiency of the coal-bearing stratum.