The invention relates to a micro 5G communication base station antenna, comprising a holding pole, an antenna as well as an upper bracket and a lower bracket respectively fixed on the holding pole; the upper bracket is located above the lower bracket; the upper end of the antenna is connected with the upper bracket; the lower end of the antenna is connected with the lower bracket; and the antennacomprises an outer cover and a circuit board located at the outer cover. The micro 5G communication base station antenna provided by the invention has relatively high self-cleaning effect, can utilizea relatively highly hydrophobic material for realizing an effect that water drops freely roll on a hydrophobic surface, can take dust and particles away in a rolling down process and can be used outdoors for a long time, so that dust attached on the outer cover is obviously reduced, operation is simple, cost is low, and 5G communication need can be met.