The invention provides a large multifunctional offshore structure personnel getting-on and leaning walking bridge which comprises a rotary table. A fixed ladder inclining downwards is fixed to the rotary table, a movable ladder capable of sliding along the fixed ladder is installed on the fixed ladder, a steel wire rope is tied to the upper end of the movable ladder and wound around an output shaft of a winch, and the winch is fixed into the rotary table. According to the invention, reasonable structure arrangement is adopted; the problems of safety and convenience during face-to-face getting-on and leaning of offshore structures are effectively solved, normal operation of all functional actions under complex sea conditions can be guaranteed, accordingly, safe getting-on and leaning of personnel and cargo transferring are guaranteed, the purposes of rapid transferring, cost reduction and efficiency improving are achieved, and the walking bridge is safe, reliable, high in adaptability,high in convenience and high in comprehensive efficiency on the whole.