The utility model relates to the technical field of self-service equipment, and particularly discloses a self-service mailing cabinet which comprises a storage box, a tool box and a packaging device, and the storage box is used for storing express items; the tool box comprises a first box body and a first box door rotationally connected with the first box body, the first box body is provided with a first opening, and the first box door is provided with a first opening position for opening the first opening and a first closing position for closing the first opening; the packaging device is installed in the tool box, the packaging device comprises a printing mechanism used for printing a mailing order and a storage box used for storing packaging bags, the printing mechanism comprises a
ticket outlet, the storage box comprises a bag taking opening, and when the first box door is located at the first opening position, the bag taking opening and the
ticket outlet are both exposed. According to the self-service mailing
machine, the packaging bag is taken out from the storage box and used for packaging articles to be mailed, then the
mailing list is printed through the printing mechanism and pasted on the packaging bag, and finally the packages are put into the storage box, so that self-service mailing is completed, and the mailing efficiency and flexibility are improved.