PROBLEM TO BE SOLVED: To easily prevent collision of a fire-proof door with a truck in a carrying system to carry cargoes between cargo loading/unloading stations. SOLUTION: This carrying system comprises a traveling track 1, a plurality of trucks 10 movable along the traveling track 1, and a fire-proof door 20 disposed in the middle of the traveling track 1 to shut off the traveling track 1 when a fire occurs, and further comprises a first detecting means 1 which is disposed on the trucks 10 to detect the proceeding traveling truck 10, members SA and SB disposed on the traveling track 1 on the proximal side of the fire- proof door 20 toward the advancing direction of the trucks 10, and a second detecting means 12 which is disposed on each truck 10 to detect the members SA and SB. COPYRIGHT: (C)2003,JPO