The invention discloses an anti-theft protection method for network pictures based on a Flash embedded browser. Based on the realization principles of various picture stealing means, aiming to the key link of the easy occurrence of the stolen bug in the picture network spreading and browsing course, the method designs the six picture anti-theft protection policies including dynamic reading, local cache, address failure, address encryption, overtime access and picture interfere, thereby omni-directionally and multi-dimensionally resisting and tracing a picture stealing method comprising URL (Uniform Resource Locator) source address downloading, browsing the WWW service catalogue, capturing and storing screen, finding the cache files and the like. The anti-theft protection method for pictures has the advantages of high image fidelity, high decryption difficulty, low use cost, easy popularization, adnd the like, in particular effectively resists the picture stealing method of screen capturing and screenshot with strong commonality and wide harm.