An agreement to sign fingerprints is valid as long as it meets the following conditions: the actor has corresponding civil capacity; Meaning is truth; Do not violate the mandatory provisions of laws and administrative regulations, and do not violate public order and good customs. Handprint has the same legal effect as signature or seal, and it is an effective signature method. The contract is established after all parties sign, seal or press their fingerprints. A contract is an agreement between civil subjects to establish, change and terminate a civil legal relationship. The parties may conclude a contract in writing, 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.

Legal basis:

Article 143 of the Civil Law of People's Republic of China (PRC) is valid if a civil juristic act meets the following conditions: (1) The actor has corresponding capacity for civil conduct; (2) the meaning is true; (three) does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Derivative problem:

Is fingerprinting legally binding Yes Pressing a fingerprint on a document is a confirmation of the contents of the document, which is equivalent to signing for confirmation. As far as the act of pressing a fingerprint is concerned, it is legally binding on the person who presses the fingerprint and has legal effect. However, the fact that the fingerprint is valid does not mean that the corresponding document is valid. Whether the file is valid or not depends on the content of the file itself. Whether a contract is established depends on whether the parties' expressions of will are consistent. The authenticity and validity of fingerprints, signatures and seals is a prerequisite for the authenticity and validity of the parties' will. As for the authenticity of fingerprints, it needs to be solved in the distribution of burden of proof.