The invention relates to a novel roof steel truss suspension assembled elevator structure and a construction method thereof, and belongs to the field of house construction elevator engineering. The elevator structure comprises a roof steel truss, a steel frame shaft and steel coupling beams, wherein one end of the roof steel truss is connected with a column or beam of an original building, and theother end of the roof steel truss is connected with the top of the steel frame shaft; one ends of the plurality of steel coupling beams are connected with the original building, and the other ends ofthe steel coupling beams are connected with an upright of the steel frame shaft; the height of the bottom of the steel frame shaft away from the group is not less than 4m, a lift car is arranged in the steel frame shaft, and when needing to pick passengers to the ground, the lift car can be separated from the steel frame shaft and descend to the ground; and bolt connection is formed between the roof steel truss and the column or beam of the original building, between the roof steel truss and the steel frame shaft, between the steel frame shaft and the steel coupling beams, and between the steel coupling beams and the original building. According to the invention, the elevator structure and construction method solve the daylighting problem of residents at a ground floor without affecting the ground traffic, and people and vehicles can pass through the bottom of the elevator shaft.