The invention discloses a propeller type which can generate force (torque) in six-free-degree directions for a vessel or a platform. Through matching of a propeller slewing mechanism and a main transmission mechanism, the vessel or the platform can realize flexible movement in the heaving direction, the left-and-right direction, the front-and-rear direction, the rolling direction, the plunging direction and the yawing direction. The all-directional propeller mainly comprises a propeller nacelle, wherein the propeller nacelle is fixed under the slewing mechanism through the transmission mechanism; during working, the propeller nacelle is driven to pitch by the transmission assembly; the propeller nacelle is driven to horizontally rotate to a specific angle by the slewing mechanism; and the propeller nacelle is driven to pitch to a specific angle by the transmission mechanism, so that a surging torque, a swaying torque, a yawing torque, a heaving torque, a rolling torque and a plunging torque are generated by the propeller nacelle. Matched with the vessel/ the floating platform attitude sensing system, under a high marine condition, the all-directional propeller disclosed by the invention can rotate to a specific space angle to generate a corresponding torque matched with the contour characteristics of a hull/the platform, and the stability of the vessel/ the platform is improved.