The invention discloses a floating fan tower tube scale model capable of simulating tower shadow effects and yaw errors, and relates to the field of floating fan scale model tests. The floating fan tower tube scale model comprises a tower bottom six-component meter, a tower bottom connecting component, a conical tower tube component, a yaw adjusting component and a tower top six-component meter, wherein the lower end surface of the tower bottom six-component meter is fixedly mounted on a floating platform; the upper end surface of the tower bottom six-component meter is fixedly connected with the lower part of the tower bottom connecting component; the upper part of the tower bottom connecting component is fixedly connected with the lower end part of the conical tower tube component; the upper end part of the conical tower tube component is fixedly connected with the lower part of the yaw adjusting component; and the upper part of the yaw adjusting component is fixedly connected with the lower end part of the tower top six-component meter. Through the implementation of the floating fan tower tube scale model disclosed by the invention, the tower shadow effects and the yaw errors experienced by a real offshore floating fan can be accurately and efficiently simulated under the premise that other performance requirements of a scale model pool test are prevented from being influenced; and furthermore, the tower tube loads under various working conditions of the floating fan can be completely monitored.