Abstract: Insulators are indispensable materials for overhead transmission lines. Transmission line engineering has high requirements for its quality and safety performance. Insulators with potential safety hazards may have surface flashover in thunderstorm weather; Under the specified mechanical load, damage and deterioration occur, affecting the reliability and safety of the project. The research on insulator protection bracket aims to solve the problem of frequent damage of insulators due to human factors after leaving the factory. It can solve the problem that the insulator is affected by external forces during transportation and storage. Effectively reduce insulator loss.