Abstract: Based on analysis of current market of mower and control system of intelligent mowing robot，a set of intelligent mowing robot control system was designed，which combined sensor detection technology，DC motor drive technology，PLC control technology，GPS positioning technology and touch screen human-computer interaction technology.It had characteristics of stable operation，safety and reliability，fast response，and greatly improves the efficiency of mowing.At the same time，positioning accuracy error of intelligent mowing robot was reduced，mowing efficiency was greatly improved，and degree of intelligence was also greatly improved.