To reduce the amount of work by eliminating the labor for transferring explosives contained in a transporting container to a storage tank.

The explosives charger comprises a tank for storing explosives 11, a mono pump 13 for taking out the explosives 11 from the storage tank, and a charger for charging the explosives 11 in a charging hole 30 bored in the ground 29. The storage tank comprises a container 12 for transporting the explosives 11. The transporting container 12 is made of synthetic resin or metal and containing the explosives 11. The charger comprises a charging hose 26 having forward end for delivering the explosives 11 taken out from the transporting container 12, a drum 27 for winding the charging hose 26, and a unit 28 for feeding out the charging hose 26 from the winding drum 27.