The invention relates to a flexible wheel of a blade type composite material elastic support body, and belongs to the field of wheel type vehicle tire technical research. The flexible wheel of the blade type composite material elastic support body comprises a tread, a flexible support structure, and a wheel hub, the wheel hub, the flexible support structure, and the tread are arranged in the radial direction from the inside to the outside, and the wheel hub and the flexible support structure are integrally molded through an injection molding technology. According to the flexible wheel of the blade type composite material elastic support body, an overall bearing mode of a curved support structure is adopted to improve comfort of a wheel, and at the same time quality of the wheel is reducedwith respect to a solid tire body; uneven stress generated by the support structure at the tread can be evenly dispersed, so that uniform ground pressure distribution is generated in the tread, and the problems that ground pressure distribution of the tread is uneven and the tread is abnormally worn due to the circumferential discontinuity of the support structure of a non-pneumatic wheel are solved; and grounding performance, handling performance, and driving safety of the non-pneumatic wheel are improved, and the service life of the non-pneumatic wheel is prolonged.