Automatic control method and system for air compressors

The invention provides an automatic control method for air compressors. The automatic control method is used for controlling at least two air compressors which are used for supplying power to at leasttwo working planes. The method comprises the following steps of: obtaining a working state of each working plane according to a preset period; determining a needed total pressure value datum according to the working state; obtaining number of the air compressors which need to work according to the needed total pressure value datum and a pressure value datum provided by single air compressor; andcontrolling part of the air compressors to open or close according to the number of the air compressors which need to work. The needed total pressure value datum is obtained by obtaining the practicalworking state of each working plane, so that the number of the air compressors which need to work is obtained, and therefore, communication between people under an environment inconvenient for communication can be replaced, th