The invention relates to the technical field of quality detection device of building engineering, in particular to an impact resistance test device for overhead rail glass, which solves the problems of the prior art such as high detection cost, inconvenient transportation and the like. The impact resistance test device for overhead rail glass comprises a frame, a rope and an impact hammer, wherein one end of the rope is fixedly connected with the frame, and the other end is fixedly connected with the impact hammer; the frame is provided with an angle indication mechanism for displaying the impact angle; the angle indication mechanism is connected with the frame through a detachable structure; a locking mechanism is arranged between the rope and the frame; and the locking mechanism and the frame are connected through a detachable structure. The invention has the following advantages: 1, the split detachable structure is convenient to assemble, disassemble, transport and load and flexible and convenient to use, and is particularly applicable to the construction site; 2, spot check of the installation quality is available anytime so as to discover and correct the construction deviation, thus improving the security of glass rail and effectively lowering the detection cost; and 3, the hanging height and hanging angle of the impact hammer can be adjusted, thus ensuring wide application range.