The present invention discloses a full-automatic sewing machine with an arbitrarily rotatable machine head. The machine mainly comprises the rotating machine head, an upper rotating table, a pneumaticlifting slide table, a machine frame, an X-direction driver, a Y-direction driver, an operation box, a tabouret driving motor, a machine head support, a rotating shuttle, a lower rotating table, an upper current collecting slip ring, a lower current collecting slip ring, an upper rotating table motor, a lower rotating table motor and an operation box support arm, wherein the pneumatic slide tablecomprises an air cylinder, a profile base, a sliding block and a sliding rail; and the upper rotating table is mounted on the machine head support through an inlaid nut and four M6 inner hexagon screws and then is mounted on the sliding block of the pneumatic slide table through eight M6 inner hexagon screws. The machine overcomes the defect in solving the stitch consistency problem in the priorart; the current collecting slip rings are added, so that the function of arbitrary rotation in the full-angle range can be realized, the reciprocating rotation in the fixed rotation range is avoided,and the efficiency is improved; and the machine head can be lifted, so that the machine is suitable for thin and thick material sewing.