A protective apparatus for a portable device is disclosed. The protective apparatus generally includes a main case configured for accommodating the portable device; an accessory case configured for accommodating accessories of the portable device; and a protective jacket including a main jacket and an accessory jacket, wherein the main jacket is configured for receiving the main case, and the accessory jacket is configured for receiving the accessory case; and a strap configured for joining the main jacket and the accessory jacket together. The protective apparatus not only can reduce the damage come from a sudden and violate collision to the portable device, but also provide a whole protection for the portable device without interfering the operation to the portable device.