Effective, as long as there is a normal and qualified electronic signature, the electronic contract has legal effect. Protected by law. Electronic contract is a written form stipulated by law, which can tangibly express the contents contained. Article 13 of the Electronic Signature Law of People's Republic of China (PRC) shall be regarded as a reliable electronic signature if the electronic signature meets the following conditions at the same time: (1) When the electronic signature production data is used for electronic signature, it belongs exclusively to the electronic signatory; (2) When signing, the electronic signature production data is only controlled by the electronic signer; (3) Any changes to the electronic signature after signature can be found; (4) Any changes to the content and form of the data message after signature can be found. The parties can also choose to use electronic signatures that meet their agreed reliable conditions.