The invention provides ultra-light lead-free medical flexible X-ray shielding clothes which comprise an upper clothes body, a protective cap body, sleeves, cuff bands, attaching strips, a lower clothes body, foot sleeve bodies, ankle restraint straps, son hook-and-loop fasteners, mother hook-and-loop fasteners, a waist restraint strap, restraint rings, a clamping seat and an inserting buckle plate, and the protective cap body is integrally sewn to the upper portion of the upper clothes body; the sleeves are sewn to the upper portions of the left side and the right side of the upper garment body respectively. The ultralight lead-free medical flexible X-ray shielding clothes are applied to medical radiodiagnosis places and are used for protecting the health of workers and patients; the ultralight lead-free medical flexible X-ray shielding clothes have extremely strong X-ray absorption capacity, also have the advantages of light weight, no toxicity, softness, long service life, environmental protection and the like, and meet the protection requirements of a series of radiodiagnosis such as X-ray shooting, chest X-ray radiography, CT (Computed Tomography) and molybdenum targets in modern medicine and the comfort requirements of wearers.