The utility model relates to stainless steel accessory hang plating suspension conveying use anti -drop hook structure device belongs to the technical field of suspension hook, including the conveying piece and sliding frame for conveying stainless steel accessory, sliding frame sliding sets up in the inside conveying piece, the fixed mounting of hook main part has at sliding frame bottom, the top of hook main part is provided with the through -going orifice, both sides of through -going orifice all are provided with fixed groove, the recess is provided with in the bottom inner wall of hook main part, the recess inside fixed mounting has anti -drop subassembly, the utility model discloses through anti -drop subassembly, can when stainless steel accessory place on the support plate under pressure, through linkage mechanism drive protection board automatic left -right movement, make hook main part form closed ring, double locking stainless steel accessory prevents it from slipping from the through -going orifice or support plate in conveying or vibration, significantly improved the safety and reliability of stainless steel accessory suspension conveying process, solved the problem that the existing hook easily falls off, and the practicality is strong.