The present disclosure provides a packaging apparatus. The packaging apparatus may include a main body. The main body may include a base plate, a first side plate, and a second side plate. The first side plate and the second side plate may be distributed around the base plate. The packaging apparatus may include an elastic sheet disposed above the base plate. The elastic sheet may include a first fixing part and a second fixing part. The first fixing part and the second fixing part may be connected with the first side plate and the second side plate, respectively. A space may be configured between the base plate and the elastic sheet. When the packaging apparatus is used to package a subject, the first side plate and the second side plate may be folded away from a side of the base plate where the subject is located.