Specimen bag and preparation technology thereof

The invention discloses a specimen bag. The specimen bag comprises a bag body and a bag bottom, and the bag body comprises first plastic film and second plastic film, wherein the left side and the right side of the first plastic film and the left side and the right side of the second plastic film are connected through edge sealing lines in a sealing mode; the second plastic film is provided with an outer interlayer used for containing articles in an inserted mode; the bag bottom, the first plastic film and the second plastic film are of an integral structure, the bag bottom is inwards folded into the bag when the specimen bag is not used and falls to form a rectangle to enable the specimen bag to be capable of vertically standing when the specimen bag is used, and inner support portions and outer support portions are formed on the left side and the right side of the rectangle, so that the vertically-standing stability of the specimen bag is guaranteed. The invention further discloses a preparation technology