The invention relates to a novel bus duct housing which comprises two cover plates of the same shape and two groups of locking members. Each cover plate comprises a cover plate body, two bent parts extending towards the same side from the two ends of the cover plate body, and two locking parts extending away from each other from the tail ends of the two bent parts. The two bodies and the two bentparts of the two cover plates are matched to form an accommodating space for accommodating a conductor. Each locking member passes through the two locking parts corresponding to the two cover plates so as to fix the two cover plates together. The two cover plates of the bus duct housing are fixedly connected through the two groups of locking members, and the two bodies, the two bent parts and thelocking parts of the two cover plates are matched to form an accommodating space for accommodating a conductor. Compared with the traditional four-plate bus duct housing, the novel bus duct housing has higher protection grade and higher strength.