The microwave scatterometer onboard HY-2A Satellite mainly makes measurements of surface wind vectors over the global oceans. In order to ensure that the quality of wind vectors produced by ground application system software,the product must be validated to provide the basis for the quantitative application of the data product.This paper performs the validation of wind vectorsretrieved by HY-2A scatterometer using national centers for environmental prediction (NCEP )model data. The validation result suggests that the validationmethod cangive the precision of the overall wind vectors, and also can be used to analyze the precision characteristics relating with thescanningpencil-beam system and the scatterometer measurement mechanism.Meanwhile the validation can aid to identify the short-term anomaly of measuring performance.