The invention discloses a parallel crank automatic portable antenna seat frame. The seat frame comprises a pedestal used for supporting an antenna pedestal, a supporting plate used for supporting an antenna surface and a crank following swing mechanism used for jacking and pulling the supporting plate. The supporting plate is pivoted to an opening surface on a long shaft of an elliptical ring through a pivot, the supporting plate is in a horizontal posture, and a central axis of the pivot is a positioning line. The two crank following swing mechanisms are arranged below the supporting plate. Aswing end of any crank following swing mechanism is hinged to an outer edge of the supporting plate in a mode of being right opposite to the positioning line. A hinged end right opposite to the positioning line is an X-axis swing point. The swing end of the other crank following swing mechanism, which is parallel to the positioning line, is hinged to the outer edge of the supporting plate. The hinged end, which is parallel to the positioning line, is a Y-axis swing point. An overall structure is simple, layout is reasonable, weight is light and production cost is low, the antenna can continuously track a satellite in a high-elevation airspace, a requirement of uninterrupted communication is satisfied, and defects in the prior art are overcome. Easy packaging and portability are possessed.