Abstract: Hotwire anemometry is mainly used for turbulence measurement. The main source of error for hot-wire anemometry is the variation of ambient temperature. The most popular temperature correction method was given by Brunn. However, the measurement error is large once the temperature variation exceeds several degrees. In this study, a new cross-hotwire calibration method was proposed, and the temperature correction was implicitly considered. Experimental studies were performed to validate the proposed method. The results show that:1) when the temperature variation was less than 4℃, no obvious difference was observed between the present method and Brunn's method; 2) when the temperature variation was larger than 4℃, the accuracy of the present method was more accurate than Brunn's method.