A robot system, comprising: a robot that includes an arm (103L, 103R) including a plurality of joints; a controller configured to control an operation of the robot; and a tip box; a tip feeder configured to supply the tip box with a pipette tip disposed on a tip pallet as a result of an operation of the robot, the pipette tip being attached to and detached from a pipette; wherein the tip feeder includes a tip chamber configured to house the tip box on which multiple tip pallets stacked one on top of the other are mounted; and wherein the tip feeder is configured to supply the tip pallets one by one to the tip box, wherein the tip feeder includes a movable member configured to be movable in accordance with the operation of the robot, wherein the movable member includes a slide lever configured to slide into and out of the chamber so as to push the housed tip pallet out of the chamber, and wherein the controller includes a first operation controlling unit that controls an operation of the robot so that the robot slides the slide lever, wherein the first operation controlling unit controls the operation of the robot so that the robot slides the slide lever in such a manner that the tip pallets are pushed out of the chamber one by one, and wherein the tip feeder includes a forward/backward moving member configured to move into and out of an opening into which the tip pallet is pushed in directions such as to open and close the opening, wherein the movable member includes a rotatable lever configured to move the forward/backward moving member into and out of the opening by performing a rotational operation, and wherein the controller includes a second operation controlling unit that controls an operation of the robot so that the robot rotates the rotatable lever. a robot that includes an arm (103L, 103R) including a plurality of joints; a controller configured to control an operation of the robot; and a tip box; a tip feeder configured to supply the tip box with a pipette tip disposed on a tip pallet as a result of an operation of the robot, the pipette tip being attached to and detached from a pipette; wherein the tip feeder includes a tip chamber configured to house the tip box on which multiple tip pallets stacked one on top of the other are mounted; and wherein the tip feeder is configured to supply the tip pallets one by one to the tip box, wherein the tip feeder includes a movable member configured to be movable in accordance with the operation of the robot, wherein the movable member includes a slide lever configured to slide into and out of the chamber so as to push the housed tip pallet out of the chamber, and wherein the controller includes a first operation controlling unit that controls an operation of the robot so that the robot slides the slide lever, wherein the first operation controlling unit controls the operation of the robot so that the robot slides the slide lever in such a manner that the tip pallets are pushed out of the chamber one by one, and wherein the tip feeder includes a forward/backward moving member configured to move into and out of an opening into which the tip pallet is pushed in directions such as to open and close the opening, wherein the movable member includes a rotatable lever configured to move the forward/backward moving member into and out of the opening by performing a rotational operation, and wherein the controller includes a second operation controlling unit that controls an operation of the robot so that the robot rotates the rotatable lever.