The development of tunnel engineering construction technology in China is fast, and the tunnels will be deeper, longer, more, and more complex. At present, the whole life cycle safety guarantee of tunnel engineering is mainly concentrated on safety management and evaluation. The systematic research on the technology and methods of tunnel life cycle safety guarantee is not complete. In view of this, the safety technology methods and means adopted in the tunnel engineering design, construction, and operation are summarized based on the years of construction and treatment experience of coal mine roadways, thus putting forward the policy for the whole life cycle safety guarantee of tunnel, i.e. multisource evaluation, advance detection, proper treatment, fine detection, monitoring and warning, and emergency rescue. A whole life cycle safety guarantee system for the tunnel project is established to master the geological and construction conditions around the tunnel, reduce the probability of accidents, improve the emergency treatment capacity after disasters, and ensure the safe and sustainable development of the whole life cycle of tunnels and underground projects.