The invention discloses a 5G intelligent indoor distribution antenna system based on the Internet of Things, and relates to the technical field of the Internet of Things, and the system comprises a housing, the housing is internally provided with a control mechanism communicated with the outside, the upper end wall of the control mechanism is internally provided with a collection cavity, the upper end wall of the collection cavity is internally provided with a storage cavity, and the housing is internally provided with a supporting mechanism, a moving mechanism and a control mechanism. The supporting mechanism can install and stabilize the system so that the system can adapt to various environments, the control mechanism can store antennas and is convenient to carry, the arranged control relay can conveniently take out wiring heads and is convenient to store and take out, management and storage of wires are reduced, the situation that the environment is not clean due to disordered wires is reduced, and the cleanliness and attractiveness of the environment are improved; by means of the arranged antennas, collection and storage of the antennas are facilitated, collision caused by the fact that the antennas are exposed outside the machine shell is reduced, disorder caused by untidy storage of the antennas is reduced, and when one antenna is not enough, the antennas are automatically increased, collection and storage of the antennas are automatically increased, and damage to the antennas in the carrying process is reduced.