The invention relates to a single-column measuring device of wind force and hydraulic force. The measuring device in the invention is characterized in that the device includes a bottom support fixed on a false floor of a wave tank, a stand column vertically wielded on the bottom support, a six component sensor provided with a round port on one side, and a semi-submersible platform model, wherein the top of the stand column connects with the six component sensor in a fixed manner through a connecting block, the six component senor connects with the semi-submersible platform model through a connecting board, and a round port on the six component sensor connects with a computer through a cable. Thus data of wind force and hydraulic force that the semi-submersible platform model bears is transmitted to the computer through the six component sensor. The single-column measuring device of wind force and hydraulic force in the invention has little influence to flow field near the semi-submersible platform model as well as wide universality in application. The single-column measuring device of wind force and hydraulic force in the invention can be widely applied to the measurement field of wind force and hydraulic force that the semi-submersible platform bears.