The present invention provides an antenna rotating head with a double grooves structure. The antenna includes an antenna body and an antenna rotating head. The antenna body receives signals. The antenna rotating head coupled to the antenna body. The antenna rotating head comprises a rotor, a housing and a base. The rotor has at least one groove, wherein the rotor is free to rotate. The housing coupled to the rotor to prevent the rotor from falling off. The base coupled to the housing to fix the housing. The rotor further comprises a rotor head, a rotor disc and a rotor body. The rotor head fixes the antenna body. The rotor disc coupled to the rotor head to abut against the housing. The rotor body coupled to the rotor disc, wherein the at least one groove is located on the rotor body.