A shield structure includes a shield bracket, a shield cover, and a shield layer. The shield cover is formed with openings. The shield layer is spliced with the shield cover through a conductive tape layer and covers all openings. The shield cover is formed with openings and a light shield layer is spliced with the shield cover and covers the openings, greatly reducing the weight of the shield cover while ensuring the shielding effect, without compressing space for other elements. The shield layer is thin, capable of lowering down the shield, dissipating heat effectively, reducing the temperature of the whole machine and providing a good environment for the operation of the whole machine, without affecting the shielding effect; and the conductive tape layer is spliced with the shield layer, thus allowing multiple assembling without damaging the whole structure, and facilitating subsequent repair.