Legal analysis: Generally speaking, whether you can sign a contract online depends on the specific situation. Online contract signing usually refers to electronic contract signing. If both parties use a reliable electronic signature system to sign, and the contents of the electronic contract express the true wishes of both parties, there is no violation of laws and regulations. Then both parties can sign an electronic contract online.

Legal basis: Article 469 of the Civil Code of People's Republic of China (PRC), the parties may conclude a contract in written form, orally or in other forms. Written form refers to contracts, letters, telegrams, telexes, faxes and other forms that can tangibly express the contents contained. A data message that can tangibly express its content through electronic data interchange, e-mail, etc. , and can be retrieved at any time, are considered in writing.