According to the relevant provisions of China's Civil Code, if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Directly juxtaposed with the way of signing and stamping by fingerprints, it has become a legal way of signing contracts.

Legal basis: According to Article 490 of the General Principles of Civil Law of People's Republic of China (PRC), if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or fingerprint it. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.