An autonomous travel work system 1 works, regarding a garden LD as a canvas and applying an arbitrary design to the garden LD, according the design. The autonomous travel work system 1 includes an information terminal 140 configured to be input means and transmit input information, a computer 100 configured to receive the input information, and at least one electric lawn mower 10 configured to work autonomously traveling in the garden LD. The information terminal 140 includes a display means 144, a work ground input means 146, a design allocation input means 148, and a work request means 150. The information terminal 140 or the computer 100 includes a work ground designation means 106, a design allocation means 107, a mapping route generation means 108, and a work pattern generation means 109.