Disclosed is a tunnel construction disaster planning and preventing response system based on a network platform. The network platform consists of a server and a network terminal, the server comprises a central processing unit, a hard disc, a memory, a chip group, an I/O bus, I/O equipment, a power supply and a wireless communication module, a network operation system and application software are installed in the hard disc, and tunnel construction disaster planning and preventing response system program, engineering data, parameter and planing data base of construction in process are stored in the hard disc. By aid of the tunnel construction disaster planning and preventing response system based on a network platform, normalization and effectiveness of tunnel construction emergency management can be strengthened, scientificalness of tunnel construction emergency management level is increased, blindness of rescue operation in disasters can be reduced, and rescue efficiency is increased, thereby being favorable for designing feasible emergency treatment measures and improving self disaster emergency management capacity effectively as soon as possible after disasters according to actual conditions. The tunnel construction disaster planning and preventing response system based on a network platform can be used for tunnel construction disaster rescue response exercise and emergency rescue.