A method for resource download includes steps of: obtaining a download link of a download resource and querying a hash server whether or not stores with a full-text hash of a resource file corresponding to the download link; downloading a head data of the resource file via a source server and calculating a head hash of the resource file if the hash server does not store with the full-text hash of the resource file corresponding to the download link; and adopting a respective download strategy based on whether or not the hash server stores with the full-text hash of the resource file corresponding to the head hash. A system for resource down load is also provided.