The precise using of the weather radar data and the using effect of the weather radar mosaic observation are based on the precise positioning of the radar antenna feed coordinates. At present, antenna feed coordinates of the new generation weather radar are measured basically by single point positioning method of the American GPS (Global Position System) which is one kind of the GNSS (Global Navigation Satellite System), and the measurement error is generally more than 30 m. In order to improve the positioning accuracy, a new method to measure the weather radar antenna feed coordinates is proposed in this article. The GPS precise positioning technology and total station measuring technology are combined in the method, which can improve the accuracy of measuring the altitude of the weather radar antenna feed, making the error less than 10 m. The new generation weather radar feed coordinates of the Beijing Meteorological Bureau are measured with this method, and the measurement accuracy meets the design requirements.