A robot system , comprising: a robot ; a liquid application part provided on the robot ; an application thickness measurement part measuring an application thickness of a liquid applied by the liquid application part ; and a distance measurement part measuring a first distance (D1) from the distance measurement part to an application object ; and a control part controlling the robot based on the first distance (D1) so that a second distance (D2) from the liquid application part to the application object becomes constant; , wherein the distance measurement part , the liquid application part and the application thickness measurement part are arranged in this order in an application direction of the liquid; the robot system being characterized in further comprising: a supply amount adjustment part adjusting a supply amount of the liquid to the application object according to the application thickness measured by the application thickness measurement part ; and in that the liquid application part comprises a syringe and a nozzle, wherein a discharge of the liquid is suppressed by creating negative pressure inside the syringe , and the discharge of the liquid is performed by creating atmospheric pressure or positive pressure inside the syringe , and the supply amount adjustment part adjusts the supply amount of the liquid to the application object by adjusting a distance between the nozzle and the application object . a robot ; a liquid application part provided on the robot ; an application thickness measurement part measuring an application thickness of a liquid applied by the liquid application part ; and a distance measurement part measuring a first distance (D1) from the distance measurement part to an application object ; and a control part controlling the robot based on the first distance (D1) so that a second distance (D2) from the liquid application part to the application object becomes constant; , wherein the distance measurement part , the liquid application part and the application thickness measurement part are arranged in this order in an application direction of the liquid; the robot system being characterized in further comprising: a supply amount adjustment part adjusting a supply amount of the liquid to the application object according to the application thickness measured by the application thickness measurement part ; and in that the liquid application part comprises a syringe and a nozzle, wherein a discharge of the liquid is suppressed by creating negative pressure inside the syringe , and the discharge of the liquid is performed by creating atmospheric pressure or positive pressure inside the syringe , and the supply amount adjustment part adjusts the supply amount of the liquid to the application object by adjusting a distance between the nozzle and the application object . a supply amount adjustment part adjusting a supply amount of the liquid to the application object according to the application thickness measured by the application thickness measurement part ; and in that the liquid application part comprises a syringe and a nozzle, wherein a discharge of the liquid is suppressed by creating negative pressure inside the syringe , and the discharge of the liquid is performed by creating atmospheric pressure or positive pressure inside the syringe , and the supply amount adjustment part adjusts the supply amount of the liquid to the application object by adjusting a distance between the nozzle and the application object . <EOS>