Ventilation network theories and computer technology are applied, a mine ventilation system gathering drawing, data management and ventilation network calculation is developed in this paper.

For displaying reliability of the ventilation network calculation of thissystem,an example in field is supplied.

A safe, reliable, economic and practical coalmine ventilation network calculation software is important to guarantee the safety in production underground.

Use mine ventilation network solution is not only the result of ventilation management enable scientific and efficient, and can reduce mine ventilation costs, increase economic efficiency.

Based on the ventilation network solution scientifically,and applied the theory of Virtual Reality technology ,the paper researched the application software exploitation of mining ventilation system with Virtual Reality.

At last, using a cooperation strategy of vote, calculation of wind net in ventilation is settled by a new way, and an intelligent virtual ventilation simulation system is constructed.

This paper introduced the design and realization of the coal-mining simulation system which is based on the coal-mining simulation problem exists in coal-minging enterprises,provide the background and meaning of the designment,introduced the principle and method of the system as well as it's total function.

In the method, a optimization model of a ventilating network is put forward by taking the minimizing squared sum of algebraic sum of the ventilation pressure of all branches in a independent circuit about all independent circuits as object function, therefore a new algorithm of ventilation network optimization is obtained.

The Application of MATLAB in the calculation of mine ventilation network