Abstarct: Tunneling with the use of drilling and blasting is the most important method than the mechanical technique due to the less initial cost. Obviously, this kind of tunneling method is always faced with a significant risk in coal mining, which, if not well managed, can lead to irreparable damage to life and financial, as well as to prolong and increase its cost. Therefore, by recognizing the risks and proper management, responses to risks can be taken as an effective step to reduce accidents and optimize the blast operation. In this thesis, with the purpose of identifying, assessing, classifying risks can be prevented them from occurring by controlling the root causes of the main risks, and or reduced the severity of the effect. With studding of past research and data collection, risk related to drilling and blasting method of tunneling industrial mineral mines in the North East were identified. The main risks and the causes of their creation are called final (top) Events, intermediate and basic event that they are plotted in a fault free format. The final events affecting the risk of tunneling by drilling and blasting were classified into seven groups including fly rock, air vibration, earthquake, misfire, sudden explosion, large parts and very small parts. The significance of each basic event was questioned through a questionnaire from relevant experts. Fuzzy theory was applied to weight the root causes in order to determine the probability of the basic and intermediate events and resulting in the final events. Then, the Fuzzy Delphi Hierarchy Analysis method was used to calculate the severity of the effect of each of the final events. The risk matrix was formed for the eventual event. The results showed that the most critical risk associated with the final event are fly rock and after that, the risks of misfire, the presence of large parts, sudden explosions, air vibration, earthquakes, and the presence of very small parts is in the lower ranks. Further, appropriate responses are given for controlling or reducing the risk.