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When the multiple compressors of long-distance natural gas pipeline will be started, a series of operations are completed manually, which takes a long time, and the inspection and judgment are not accurate, and the energy consumption of parallel operation of multiple units is large. In order to improve the efficiency of multi unit start-up and the success rate of one-time start-up of compressor, automatically identify the unsatisfied items of start-up, and quickly put load distribution into operation, so as to maximize the work efficiency of the unit. Using data acquisition and monitoring control(SCADA) system, setting the automatic control of starting priority, starting number and load distribution of multiple compressors, and the communication between logic controller(PLC) and compressor unit control system(UCS) is optimized. It innovates and realizes the sequential start-up of multiple units with one key and automatic grid connection of load distribution of multiple units after start-up. Through practical application, it meets the requirements of multi unit start-up of four compressors in Heihe initial station of China Russia east gas pipeline, reduces manpower and energy consumption, and improves production and operation efficiency. It provides a rich reference value for the joint automatic control of large mechanical equipment in many industries and transport media, and has a certain guiding significance for the control integration of UCS and SCADA.