The invention relates to the technical field of textile machinery, in particular to a blowing valve interlock control device, which comprises a programmable logic controller (PLC), a module assembly, relay modules, electromagnetic valves and a terminal plug, wherein each relay module is connected with an electromagnetic valve; the module assembly is formed by connecting at least two relay modules in series; the PLC is connected with the head of the module assembly; and the terminal plug is connected with the tail of the module assembly. In the blowing valve interlock control device, the relay modules are connected in series to form the module assembly so as to form an interlock control circuit; only one group of output ports of the PLC are used to output preset pulse signals, the required functions can be realized, and all electromagnetic valves are controlled to be opened or closed; and the blowing valve interlock control device is simple in structure and convenient to use, the cost is reduced and the production efficiency is greatly improved.