The invention proposes a sinking pipe sinking control system and a sinking pipe sinking method, and belongs to the technical field of sinking pipe tunnel construction. The sinking pipe sinking control system comprises a sinking barge, and a sinking pipe positioned below the sinking barge; multiple lifting cables for controlling the sinking pipe to move up and down are arranged at the bottom of the sinking barge, and are uniformly distributed at the bottom of the sinking barge; the sinking pipe is connected with the multiple lifting cables; at least two first control units for controlling the sinking pipe to swing left and right are arranged between the bottom of the sinking barge and the sinking pipe; the first control units are arranged in the left-right direction; the multiple first control units are uniformly distributed between the sinking barge and the sinking pipe; a second control unit for controlling the sinking pipe to swing front and back is arranged between the bottom of the sinking barge and the sinking pipe; and the second control unit is arranged in the front-back direction. The sinking pipe sinking control system can control the sinking pipe to swing in the sinking process, keeps the sinking pipe stable, and guarantees the sinking pipe to sink in a preset position.