The invention provides a method for providing the identity uniqueness of an online shopping commodity through the order content. The method is characterized in that the content of the identity uniqueness of the online shopping commodity can be proved according to the record in an order, and the content for proving the identity uniqueness of the online shopping commodity includes at least one of the sequence number of the commodity, the recognition code of a main part, the batch code and the uniqueness code given by a sales person or online merchant. The method is effective and feasible when the identity uniqueness of the online traded commodity is proved.