In the year of 2010, Institute of Mining Science and Technology (VIMSAT) has developed the application of the non-electrical delay detonators together with the drilling and blasting method for the rockaway driving at underground coal mines under the mining conditions of explosive dust and gas such as Quang Hanh, Ha Long, Uong Bi, Dong Bac and Vang Danh. In this paper, the authors introduces some initial application results of the domestic non-electrical delay detonators to the rockaway driving operations at underground coal mines belonging to the Vietnam National Coal Mineral Industries Group (Vinacomin).