The invention relates to an automatic code-spraying printer which comprises a control system and a rack. The rack is provided with a driving device, a feeding device, a code-spraying device and a winding device. The code-spraying device comprises a code-spraying table, a code-spraying connection frame located on the rack is arranged above the code-spraying table, and a code sprayer is in control connection with a control system is connected to the code-spraying connection frame. A positioning mark is directly printed on a transfer film, the ironing process is omitted, and quality reducing of the transfer film caused by ironing is avoided.