Air pump control system and method and laser engraving machine

The invention provides an air pump control system, a laser engraving machine and an air pump control method. The air pump control system comprises a power module, a control module, a driving module and a detection module. The driving module is used for outputting driving signals to drive the air pump to work. The detection module is used for detecting a plurality of temperature values in an air channel of the air pump. The control module is used for determining the temperature change rate of the air channel according to the multiple temperature values detected by the detection module and determining the air flow of the air pump according to the temperature change rate. The multiple temperature values in the air channel of the air pump are obtained through the detection module, the temperature change rate is determined through the control module according to the multiple temperature values, and then the air flow of the air pump is determined according to the temperature change rate. 本申请提供一种气泵控制系统、激光雕刻机及气泵控制方法。