This paper introduces key technologies and methods of comprehensive information automatic collection

wireless transmission，forewarning system in tunnel construction. Combining with modern telemetry technology

the system integrates sensor data acquisition (frequency

voltage

current simultaneously

digital etc.) of selected measuring section

three-dimensional laser scanning

advance geological forecast

blasting vibration monitoring and visualization monitoring. It can realize tunnel construction face image real-time display and analysis，certain tunnel construction monitoring data automatic collection and analysis

form the tunnel construction comprehensive information monitoring system

ensure tunnel construction safety in complex geological conditions of surrounding rock. The comprehensive

real-time and warning characteristics of TIS have an important practical meaning for dynamic design

construction management and improving the construction safety degree.