Robot system and teaching method therefor

A robot system (1) according to an aspect of an embodiment includes a robot (2) and a work bench (3, 3a, 3b, 3c, or 3d). The robot (2) has a plurality of joints including a first joint (22) that is provided so as to be rotatable relative to an installation surface. On the work bench (3, 3a, 3b, 3c, or 3d), a fixing part (32, 33, 34, 35, 36, 37), by which a work member used in operations of the robot (2) is fixed, is provided on a plate surface of a top plate (31, 31a, 31b, or 31c) with a rotation axis (20) of the first joint (22) serving as a normal line thereof, along a circular arc (30) having a center at an intersection between the plate surface and the rotation axis (20).