An annular member stopping structure for a friction engaging device includes an end plate 212, a plurality of projecting sections 218 projecting in a radial direction at intervals in a circumferential direction on the end plate 212, a drum 112 having hook parts 220 configured to engage with the projecting sections 218, the drum 112 being non-rotatable relative to the end plate 212, an annular groove 214 provided in the drum 112, and a C-shaped snap ring 216 configured to fit in the annular groove 214. A circumferential direction abutting section 226 freely abutting with circumferential direction end 216a of the snap ring 216 is provided in the end plate 212.