Comparisons are conducted between wind profiler and radiosonde measurements of three years (2006 to 2008) to evaluate the detective accuracy of wind profilers. Meanwhile, comparison results at different heights, times, and speeds, are analyzed respectively, and a correlation analysis is made to calculate the average deviation and standard deviation. Results show that the two sets of wind measurements have good consistency with each other. The standard deviation of the horizontal wind component is about 23 m/s, mainly from the detecting errors in wind measurement and the differences in temporal and spatial sampling of the two systems.