The invention discloses a periphery construction channel for a building body with a steel structure. The periphery construction channel for the building body with the steel structure comprises a plurality of layers of horizontal channels and inclined channels; each of the inclined channels is arranged between every two adjacent horizontal channels; one end of each inclined channel is fixedly connected to a building body I-beam of an opposite floor; the other end of each inclined channel is fixedly connected with a beam body of the opposite floor; the periphery construction channel also comprises angle sensors and warning devices, wherein each angle sensor is used for detecting the inclination angle of the inclined channel, and each warning device is connected with the corresponding angle sensor through a signal and gives a warning signal when the inclination angle is greater than a preset angle threshold value. In such manner, the periphery construction channel can adapt to the structural characteristics of a novel structural wall body and is convenient to mount and construct; moreover, safety early-warning equipment is added, so that the construction safety is improved.