The invention relates to a frame structure building, in particular to a hanging plate type earthquake reduction envelope structure of a frame type structure building and belongs to the technical field of earthquake prevention and disaster mitigation. In order to overcome the defect that the earthquake resistance performance of a traditional masonry or base plate type envelope structure is not well utilized, and the traditional masonry or base plate type envelope structure becomes a burden of a body structure under the earthquake action, the design conception of adopting the prefabricated hanging plate envelope structure is provided, the prefabricated hanging plate type envelope structure is hung on the lower portion of a beam above the envelope structure through connecting hanging parts, and the hanging plate type envelope structure and the body structure are fixed by the adoption of protection connection structures so that normal using functions of the envelope structure can be guaranteed. Under the frequent earthquake action, the hanging plate type envelope structure and the body structure are kept complete relatively. Under the strong earthquake action, foam concrete around is broken, the hanging plate type envelope structure hung on the beam swings under the earthquake action, in this way, the earthquake period of the structure is changed, energy, input into the structure, of an earthquake is consumed, then the purpose of reducing the earthquake response of the body structure is achieved, and the overall earthquake resistance performance of the structure is improved.