Abstract: As a previous work of underground mine fire disaster simulation，how to establish calculation method and 3D visualization techniques of fire-oriented underground mine ventilation network plays an important role.As a result，a ventilation network graph model is established，and then a ventilation calculation based on H-Cross algorithm is constructed.In this paper，the calculation result can be saved in the database，which can increase user's call efficiency.Furthermore，3D visualization of ventilation network calculation is implemented by 3D visualization technique，which provides a basis for fire disaster simulation.At last，with an application in a typical underground metal mine，ventilation network calculation and 3D visualization is put into effect by Java and JOGL，which verifies that the technique is feasible and effective.

Key words: Fire-oriented, Mine ventilation network calculation, H-Cross algorithm, 3D visualization