The utility model discloses a squid fishing boat nameplate fixing structure. The problem that most nameplates on existing squid fishing boats are directly installed on the boats and are prone to beinginvaded by sea wind, and corrosion is caused is mainly solved. The device is characterized in that the device also comprises an installation module (3), the installation module comprises a housing (30) and a cover body (31), and the housing is made of plastic; wherein a groove (21) matched with the shell in a clamped mode is formed in the ship body, a sinking groove (301) is formed in the front end face of the shell, the board body is installed on the inner wall of the bottom of the sinking groove through screws, one end of the cover plate is hinged to the shell, the other end of the cover plate makes contact with the front end face of the sinking groove under the action of gravity, and the cover plate is made of transparent materials. According to the nameplate fixing structure of the squid fishing boat, the nameplate is installed through the installation module and arranged in the installation module, sea wind invasion is prevented, and the service life is prolonged.