Long diversion tunnel is often featured by great embedded depth, long tunnel line, large hole diameter and extremely complicated geologic conditions. The engineering quantity of each process is large, and the influence is enormous; therefore, the internal and external environment and constraint condition are changed in the actual construction, leading to the deviation between formerly construction schedule plan and actual construction schedule plan. If the deviation isn't corrected timely, the formerly plan can not guide the actual construction. In this paper, using computer simulation technology, control theory and virtual reality technology, the whole construction process real-time schedule control and visual analysis of the long distance diversion tunnel based on simulation are proposed. The feasibility study and scientific basis is provided for the real-time control of construction schedule.