The invention discloses an intelligent inflatable waistband. The waistband comprises an airbag assembly, an air source assembly, a control assembly and a waistband body, wherein the airbag assembly comprises an airbag and a turnover box, the turnover box is connected and fixed on the waistband body, and the airbag is arranged in the turnover box and is connected with the waistband body through a plurality of connecting lines; the air source assembly comprises an air storage cylinder and an automatic cylinder opening device; an air pipeline is arranged in the waistband body; the control assembly comprises a control chip, a power supply, an electronic circuit and a pressure sensor, the electronic circuit and the pressure sensor are electrically connected with the control chip respectively; when water pressure and time which are detected by the pressure sensor reach the set values, the control chip starts the automatic cylinder opening device to open the air storage cylinder to supply airto the airbag through the air pipeline, the airbag is inflated and expanded to be ejected out of the turnover box and is filled with the air to be fully expanded, and the fully expanded airbag pullsthe waistband body through the connecting lines and supports a human body to float on the water surface.