The utility model relates to a large -scale mechanical safety of nearly railway business line construction control emulation sand table, including power, control system, sand table, the natural landscape model of setting on the sand table, set up at outside demonstration system and railway system model, job site model, construction equipment model and the personnel model of setting on the sand table of sand table. The utility model discloses a sand table can imitate various motions and action in kind as the safe teaching aid of constructing, train model, construction work mechanical model, construction vehicle model, and the job site is very lifelike, and educational effect is very directly perceived, can the fine construction safety education who guarantees the other large -scale mechanical constructor of line operated.