The invention provides a shock absorbing foot arch support. The shock absorbing foot arch support comprises a foot arch support body, which is composed of an elastic pad and a connecting band, whereinthe elastic pad is arranged in the middle of the connecting band, and the elastic pad and the connecting band are in an integrated structure and are made of soft materials; both ends of the connecting band are provided with matched connecting mechanisms. The shock absorbing foot arch support is made of silicon rubber and accordingly can perfectly matched with elasticity and foot shape, can effectively protect foot arch during shopping, travelling and exercise, correct flatfoot, comprehensively protect the foot arch, reduce pressure of the foot arch and recover elasticity of the foot arch, thereby being practical and simple in operation.