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.