A non-pneumatic tire comprising: an attachment body attachable to an axle; a ring member including an inner rim body fitted onto the attachment body and an outer rim body configured to surround the attachment body from the outside in a tire radial direction; and a plurality of connecting members configured to displaceably connect the inner rim body and the outer rim body, wherein the connecting members each comprise an elastic connecting plate (21, 22) having both end sections (21a, 22a, 21b, 22b) connected to the inner rim body and the outer rim body, respectively, in the elastic connecting plate (21, 22), a plurality of curved end sections (21g, 21h, 22g, 22h) curved in a tire circumferential direction are formed at a radially inner end section (21b, 22b) connected to the inner rim body in a direction in which the elastic connecting plate (21, 22) extends in a side view of the tire when the tire is seen from a tire width direction, and in these curved end sections (21g, 21h, 22g, 22h), curve directions of the curved end sections (21g, 21h, 22g, 22h) adjacent to each other are directed to oppose each other; wherein each elastic connecting plate comprises a plurality of intermediate curved sections (21d to 21f, 22d to 22f) curved in the tire circumferential direction formed at intermediate portions (21c, 22c) disposed between a radially outer end section (21a, 22a) and the radially inner end section (21b, 22b) in a direction in which the elastic connecting plate (21, 22) extends in the side view of the tire when the tire is seen from the tire width direction, the first curved end sections (21g, 22g) being disposed inside in the tire radial direction and connected to the attachment body via the inner rim body, and the second curved end sections (21h, 22h) being disposed outside in the tire radial direction and connected to the intermediate portions (21c, 22c) of the elastic connecting plate (21, 22), characterised in that the ring member and each of the connecting members are integrally formed by a resin material, and for all the elastic connecting plates (21, 22), the first curved end sections (21g, 22g) and the second curved end sections (21h, 22h) have the same radius of curvature in the side view of the tire, and each of the curved end sections (21g, 22g, 21h, 22h) has a smaller radius of curvature in the side view of the tire than each of the intermediate curved sections (21d to 21f,22d to 22f). an attachment body attachable to an axle; a ring member including an inner rim body fitted onto the attachment body and an outer rim body configured to surround the attachment body from the outside in a tire radial direction; and a plurality of connecting members configured to displaceably connect the inner rim body and the outer rim body, wherein the connecting members each comprise an elastic connecting plate (21, 22) having both end sections (21a, 22a, 21b, 22b) connected to the inner rim body and the outer rim body, respectively, in the elastic connecting plate (21, 22), a plurality of curved end sections (21g, 21h, 22g, 22h) curved in a tire circumferential direction are formed at a radially inner end section (21b, 22b) connected to the inner rim body in a direction in which the elastic connecting plate (21, 22) extends in a side view of the tire when the tire is seen from a tire width direction, and in these curved end sections (21g, 21h, 22g, 22h), curve directions of the curved end sections (21g, 21h, 22g, 22h) adjacent to each other are directed to oppose each other; wherein each elastic connecting plate comprises a plurality of intermediate curved sections (21d to 21f, 22d to 22f) curved in the tire circumferential direction formed at intermediate portions (21c, 22c) disposed between a radially outer end section (21a, 22a) and the radially inner end section (21b, 22b) in a direction in which the elastic connecting plate (21, 22) extends in the side view of the tire when the tire is seen from the tire width direction, the first curved end sections (21g, 22g) being disposed inside in the tire radial direction and connected to the attachment body via the inner rim body, and the second curved end sections (21h, 22h) being disposed outside in the tire radial direction and connected to the intermediate portions (21c, 22c) of the elastic connecting plate (21, 22), characterised in that the ring member and each of the connecting members are integrally formed by a resin material, and for all the elastic connecting plates (21, 22), the first curved end sections (21g, 22g) and the second curved end sections (21h, 22h) have the same radius of curvature in the side view of the tire, and each of the curved end sections (21g, 22g, 21h, 22h) has a smaller radius of curvature in the side view of the tire than each of the intermediate curved sections (21d to 21f,22d to 22f).