The utility model discloses an electrical equipment box body marks tablet fixing device, including deckle board and clamp plate, time saving and labor saving, the front of deckle board is equipped with and is used for inserting the slot that marks the tablet, the operation efficiency is improved, reduces labor intensity, fixed screw on the deckle board is fixed the front of deckle board, and application range is wide. The utility model discloses simple structure only need carry out one -time Setup, and singlely can accomplish the dismouting of marking the tablet, and the installation effectiveness is high, convenient and fast, the practicality is strong, mark the tablet change convenient, labour saving and time saving, it is convenient to maintain, has effectively improved work efficiency. In addition, the utility model discloses sound construction, attractive and durable satisfies the requirement of electric power safety facility standard ization, simultaneously device repeatedly usable, effectively reduction in production cost.