Abstract: An intermittent transportation plan with a monthly transportation capacity of 0.1 million tons for the Zhong-Luo loop line is drew up through thoroughly studying the object functions and constraint conditions of intermittent transportation. Study reveals that variations of the shutdown temperature drop, starting pressure and volume are subtle at different stages in summer, while in winter and autumn, the shutdown temperature drop and starting pressure go up and the starting volume goes down as the air and earth temperatures decrease, variations of each parameter in spring are contrary to that in winter and autumn.