The invention provides an anemometer, which comprises a wind direction measuring device and a wind speed measuring device, wherein the wind direction measuring device comprises a rotating assembly and a fixing part, and the rotating assembly is used for rotating relative to the fixing part under effects of wind; the wind direction measuring device measures a wind direction according to the rotating angle of the rotating assembly relative to the fixing part; and the wind speed measuring device is arranged on the rotating assembly and rotates along with the rotating assembly. The anemometer provided by the invention integrates functions of wind direction measurement and wind speed measurement on one device, the wind speed measuring device arranged on the rotating assembly and rotating along with the rotating assembly is adopted to measure the wind speed, the wind speed measuring device can adjust the position according to the wind direction, a more accurate wind speed detection result is acquired, wind direction measurement and wind speed measurement can have the same measurement position, in comparison with the prior art, the cost can be reduced, and the accuracy of statistical analysis of the wind energy status can be improved.