In view of the frequent occurrence of safety accidents in the field of chemical production in China in recent years, enterprises organize emergency drills with low frequency, high cost and many restrictions. Combining with the characteristics of enterprise production, this paper proposes to develop a virtual emergency drilling system to promote the normalization of enterprise emergency simulation drilling. By analyzing the requirements of enterprise emergency simulation drilling, a virtual emergency drilling system based on B/S architecture is designed and developed. The enterprise employees can effectively carry out emergency simulation exercise through the system. Through the organic combination of configuration and drilling, the system realizes the configuration of drill scene, disaster types and personnel vehicle scheduling. The system realizes the synchronization of network data and the storage of drill data, and uses a variety of optimization technologies to improve the smoothness of system operation. The system realizes the command level leadership dispatching, and that the lower level personnel carries out the specific operation according to the command issued by the command level, and strengthens the emergency rescue and disposal ability of the grassroots staff and commanders for the onsite accidents. The results show that the system can well meet the needs of enterprises for emergency simulation and effectively improve the comprehensive emergency capability of enterprises.