The invention discloses a correcting method for an anemometer tower in numerical weather prediction. Weather information transmitted by a large computer in a junction center through a weather observation station generates a weather prediction preliminary product through mode calculation, information of a selected area is collected through the real-time anemometer tower, and the collected information is uploaded to the junction center; the junction center performs numerical weather prediction correction on the generated weather prediction preliminary product in cooperation with the information transmitted by the real-time anemometer tower. Real-condition data are input to the large computer in the junction center, and the numerical weather prediction result is corrected; in other words, the numerical weather prediction is fed back and intervened through actually measured wind condition data so that the numerical weather prediction can be corrected and fed back. The actually measured data feedback link is added, the numerical weather prediction production result can be more accurate, and meanwhile the problem that in a remote area, numerical weather prediction accuracy is low because of shortage of weather stations is solved.