A continuous shot peening apparatus for a coil spring, the apparatus comprising: a shot peening device (SP) configured to perform shot peening processing of a coil spring (CS); and a mounting part in which the coil spring (CS) is mounted, wherein the mounting part comprises a plurality of housings (C), a plurality of holding units disposed in the housings (C) to hold the coil spring (CS), and driving units disposed in the housings (C) to cause the holding units to rotate and revolve, each of the driving units being disposed in a housing (C) and comprising a driving shaft (S2) configured to be rotated by a driving actuator (M2), a rotation unit (GU) interworking with the driving shaft (S2) to rotate the holding units , and a revolution unit interworking with each of the driving shaft (S2) and a holding unit to cause the holding unit to revolve, characterised in that : each housing (C) comprises a central housing (C2) configured to receive a plurality of coil springs (CS) therein, and a first housing (C1) and a second housing (C3) arranged at horizontally opposite sides of the central housing (C2), respectively, the holding units are symmetrically arranged in the first housing (C1) and the second housing (C3) in the horizontal direction, respectively, so as to hold opposite sides of the coil spring (CS) disposed in the central housing (C2), respectively, and the driving units are symmetrically arranged in the horizontal direction and disposed in the first housing (C1) and the second housing (C3), respectively. a shot peening device (SP) configured to perform shot peening processing of a coil spring (CS); and a mounting part in which the coil spring (CS) is mounted, wherein the mounting part comprises a plurality of housings (C), a plurality of holding units disposed in the housings (C) to hold the coil spring (CS), and driving units disposed in the housings (C) to cause the holding units to rotate and revolve, each of the driving units being disposed in a housing (C) and comprising a driving shaft (S2) configured to be rotated by a driving actuator (M2), a rotation unit (GU) interworking with the driving shaft (S2) to rotate the holding units , and a revolution unit interworking with each of the driving shaft (S2) and a holding unit to cause the holding unit to revolve, characterised in that : each housing (C) comprises a central housing (C2) configured to receive a plurality of coil springs (CS) therein, and a first housing (C1) and a second housing (C3) arranged at horizontally opposite sides of the central housing (C2), respectively, the holding units are symmetrically arranged in the first housing (C1) and the second housing (C3) in the horizontal direction, respectively, so as to hold opposite sides of the coil spring (CS) disposed in the central housing (C2), respectively, and the driving units are symmetrically arranged in the horizontal direction and disposed in the first housing (C1) and the second housing (C3), respectively. each housing (C) comprises a central housing (C2) configured to receive a plurality of coil springs (CS) therein, and a first housing (C1) and a second housing (C3) arranged at horizontally opposite sides of the central housing (C2), respectively, the holding units are symmetrically arranged in the first housing (C1) and the second housing (C3) in the horizontal direction, respectively, so as to hold opposite sides of the coil spring (CS) disposed in the central housing (C2), respectively, and the driving units are symmetrically arranged in the horizontal direction and disposed in the first housing (C1) and the second housing (C3), respectively. <EOS>