Flexible deployable active defense device

The invention relates to a flexible deployable active defense device which comprises a protection device, an inflation device, a locking device and a rotation control device. The protection device comprises an expandable protection screen and an inflatable supporting rod, the expandable protection screen can be divided into at least two functional layers according to the protection type, and one functional layer is a thermal shock protection screen and used for preventing attacks of laser weapons; the other one is a kinetic energy impact protection screen which respectively undertakes the functions of differentiating energy distribution and attenuating and arresting kinetic energy; the functional layers can be adjusted according to actual requirements; the inflatable supporting rod is composed of a telescopic rod and an inner container. The method has a wide application prospect in the field of spacecraft protection and safety, can be particularly used for high-value satellite protection, manned spacecraft pr