A strap adjustment apparatus , comprising: a driving part , a coiling part , and an adjusting part , wherein the driving part , the coiling part , and the adjusting part are coaxially provided; the driving part and the coiling part are both movably connected with the adjusting part ; the driving part is configured to drive the coiling part to rotate in an axial direction; the coiling part is provided thereon with a coiling column and spring sheets , and the coiling column is provided thereon with a fixing portion configured to fix a strap ; the adjusting part is provided thereon with annular racks cooperating with the spring sheets ; the adjusting part is in a ring shape; the adjusting part is sleeved outside the coiling part , and the annular racks are provided on an inner wall of the adjusting part ; the adjusting part is provided thereon with eyelet holes configured for allowing the strap to pass through; the coiling part comprises a coiling wheel and a clamping part ; the coiling wheel and the clamping part are fixedly connected in a detachable manner; the clamping part is provided thereon with the spring sheets ; the coiling wheel is provided thereon with the coiling column ; and the coiling wheel is provided thereon with a through hole configured for allowing the strap to pass through, characterized in that the clamping part is an Ω-type spring sheet , two positioning columns are correspondingly provided at two sides of an opening of the Ω-type spring sheet , and the spring sheets are provided at extending parts of two ends of the opening of the Ω-type spring sheet ; a positioning boss is provided on the coiling wheel , and two positioning grooves are correspondingly provided at two sides of the positioning boss ; and the two positioning columns are embedded in the two positioning grooves respectively. the driving part , the coiling part , and the adjusting part are coaxially provided; the driving part and the coiling part are both movably connected with the adjusting part ; the driving part is configured to drive the coiling part to rotate in an axial direction; the coiling part is provided thereon with a coiling column and spring sheets , and the coiling column is provided thereon with a fixing portion configured to fix a strap ; the adjusting part is provided thereon with annular racks cooperating with the spring sheets ; the adjusting part is in a ring shape; the adjusting part is sleeved outside the coiling part , and the annular racks are provided on an inner wall of the adjusting part ; the adjusting part is provided thereon with eyelet holes configured for allowing the strap to pass through; the coiling part comprises a coiling wheel and a clamping part ; the coiling wheel and the clamping part are fixedly connected in a detachable manner; the clamping part is provided thereon with the spring sheets ; the coiling wheel is provided thereon with the coiling column ; and the coiling wheel is provided thereon with a through hole configured for allowing the strap to pass through, characterized in that the clamping part is an Ω-type spring sheet , two positioning columns are correspondingly provided at two sides of an opening of the Ω-type spring sheet , and the spring sheets are provided at extending parts of two ends of the opening of the Ω-type spring sheet ; a positioning boss is provided on the coiling wheel , and two positioning grooves are correspondingly provided at two sides of the positioning boss ; and the two positioning columns are embedded in the two positioning grooves respectively. <EOS>