Generally speaking, signatures and fingerprints have the same legal effect. However, in order to facilitate confirmation, many entrustment contracts require signatures and fingerprints.

According to the "Interpretation II of the Contract Law"

Article 5: If the parties conclude a contract in the form of a contract, they shall sign or seal it. If the parties concerned press their fingerprints on the contract, the people's court shall determine that it has the same legal effect as a signature or seal.