The invention provides a mini UHF ternary-sequence feed antenna. The ternary-sequence feed antenna comprises a lower substrate (1), a feed network (2) arranged on the lower substrate (1) and used to feed UHF signals, an upper substrate (3), three planar antenna units (4) arranged between the lower substrate (1) and the upper substrate (3) and used to receive the UHF signals fed by the feed network, and three probes (5) arranged between the lower substrate (1) and the upper substrate (3) and used to transmit the UHF signals to the planar antenna units (4). The antenna has the advantages of being small in structure, low in cost, high in electrical characteristic, easy to manufacture and convenient to assemble.