The dual-channel frequency-shift MIMO DAS consists of three parts: the main unit, the coverage unit, and the 1-to-4 expansion unit. The main unit down-converts two NR signals and outputs them as four channels. These signals are extended to different locations via newly installed single flexible cables and dedicated power splitters. Finally, the coverage unit restores the two frequency-shifted signals for coverage. This system is suitable for indoor distribution scenarios with newly deployed 5G dual-stream coverage