A coil spring processing device comprising: an end positioning device which restricts ends of a coil spring to certain positions of a coil periphery and holds the coil spring ; and a shot peening device which performs shot peening while the coil spring is kept standing, wherein the shot peening device comprises: a turntable mechanism including a turntable ; a revolution mechanism which rotates the turntable mechanism around a revolution axis (x1); a holding mechanism including a lower shifting prevention jig which can hold a lower end turn portion of the coil spring and an upper shifting prevention jig which can hold an upper end turn portion of the coil spring , the holding mechanism being able to rotate around the revolution axis (X1) with the turntable ; a rotation mechanism which can rotate the holding mechanism around a rotation axis (X2, X3) ; a pressure mechanism which can compress the coil spring while the coil spring is set to the holding mechanism ; and a projection mechanism which projects shots to the compressed coil spring (1, characterised in that the shot peening device further comprises: a controller which can stop the holding mechanism at a rotation stop position corresponding to the end turn portions of the coil spring ; and a transfer mechanism which can transfer the coil spring , the ends of which have been restricted by the end positioning device , to the holding mechanism which is stopped a first rotation stop position. an end positioning device which restricts ends of a coil spring to certain positions of a coil periphery and holds the coil spring ; and a shot peening device which performs shot peening while the coil spring is kept standing, wherein the shot peening device comprises: a turntable mechanism including a turntable ; a revolution mechanism which rotates the turntable mechanism around a revolution axis (x1); a holding mechanism including a lower shifting prevention jig which can hold a lower end turn portion of the coil spring and an upper shifting prevention jig which can hold an upper end turn portion of the coil spring , the holding mechanism being able to rotate around the revolution axis (X1) with the turntable ; a rotation mechanism which can rotate the holding mechanism around a rotation axis (X2, X3) ; a pressure mechanism which can compress the coil spring while the coil spring is set to the holding mechanism ; and a projection mechanism which projects shots to the compressed coil spring (1, a turntable mechanism including a turntable ; a revolution mechanism which rotates the turntable mechanism around a revolution axis (x1); a holding mechanism including a lower shifting prevention jig which can hold a lower end turn portion of the coil spring and an upper shifting prevention jig which can hold an upper end turn portion of the coil spring , the holding mechanism being able to rotate around the revolution axis (X1) with the turntable ; a rotation mechanism which can rotate the holding mechanism around a rotation axis (X2, X3) ; a pressure mechanism which can compress the coil spring while the coil spring is set to the holding mechanism ; and a projection mechanism which projects shots to the compressed coil spring (1, characterised in that the shot peening device further comprises: a controller which can stop the holding mechanism at a rotation stop position corresponding to the end turn portions of the coil spring ; and a transfer mechanism which can transfer the coil spring , the ends of which have been restricted by the end positioning device , to the holding mechanism which is stopped a first rotation stop position. a controller which can stop the holding mechanism at a rotation stop position corresponding to the end turn portions of the coil spring ; and a transfer mechanism which can transfer the coil spring , the ends of which have been restricted by the end positioning device , to the holding mechanism which is stopped a first rotation stop position. <EOS>