A robot apparatus according to the invention is configured to hand over a workpiece by rotating by a prescribed angle a finger including a holding means for holding the workpiece. The robot apparatus includes: a drive shaft including a first finger and a second finger spaced from each other. The first finger includes a first arm portion and a second arm portion extending from its rotation center with a prescribed angle therebetween so as to be distanced from each other. The second finger includes a third arm portion and a fourth arm portion extending from its rotation center with a prescribed angle therebetween so as to be distanced from each other. The second arm portion and the fourth arm portion are distanced from each other when the first arm portion and the third arm portion overlap in the axial direction of the drive shaft. The robot apparatus can further improve productivity without incurring size increase and high cost.