The invention discloses a space-debris-and-projectile stopping protection system. The space-debris-and-projectile stopping protection system comprises a space-debris-and-projectile stopping protectiondevice and an inflation device, and the inflation device is used for inflating an inflation pipe of the space-debris-and-projectile stopping protection device; the space-debris-and-projectile stopping protection device comprises a front screen, a middle screen, a back screen and the inflation pipe; the front screen, the middle screen and the back screen are made from basalt fiber cloth and aramidfiber cloth, and are connected with the inflation pipe; the front screen, the middle screen and the back screen are unfolded after the inflation pipe carries out inflation. According to the space-debris-and-projectile stopping protection system, the flexible unfolding stopping protection device is adopted, the occupied volume weight of an aircraft is small, the system can be flexibly unfolded andapplied as required, and can also be matched with the working process of a flexible unfolding cabin to achieve the unfolding protection function, and the application requirement of space-debris-and-projectile protection is met.