The invention relates to the technical field of communication between blast furnace under-tank feed and furnace roof distribution, in particular to a communication control method between a blast furnace under-tank feeding system and a furnace roof distribution system. The method comprises the following steps of: when the material head of a certain batch of material reaches a data transmitting andchecking point and the material tail already crosses a material head-tail distance control point, sending data by the under-tank feeding system; delaying the time for about 3 seconds, then checking whether storage data in a register are empty by the furnace roof system, if so, sending a signal to a PLC (programmable logic controller) of the under-tank system to require for resending the data; when the material head of a certain batch of material reaches the data transmitting and checking point and the material tail does not cross the material head-tail distance control point, sending data by the under-tank feeding system; and after the material tail of the batch of material reaches a confirmation point of the furnace roof system, emptying the data in the register of the PLC of the furnaceroof distribution system, and preparing for receiving the data of the next batch of material. The method can effectively prevent data loss when the blast furnace under-tank feeding system transmits the data to the furnace roof distribution system.