This study analyzes the relationship between parameters of the discontinuity in Discrete Fracture Network model such as fracture intensity, fracture orientation, fracture size, fracture shape etc. In this paper, FracMan code was used to model and analyze 3D DFN. A sensitivity analysis was performed in order to analyze the relationship between linear fracture intensity measure (  ) and parameters of the discontinuity in 100 m × 100 m × 100 m model area. As a result the sensitivity analysis

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... wed that key parameters affecting fracture intensity are fracture orientation (Trend / Plunge). Conversion factor(  ) for   , to calculate volumetric fracture intensity measure (  ), is derived in case of vertical well and horizontal well when trend is 10°, 30°, 60°, 90°, 120°, 150°, 180° (7cases) and plunge is 5°, 15°, 30°, 45°, 60°, 75°, 85° (7cases). It is expected that this paper can be used effectively for modeling and understanding DFN model.