Legal analysis: Yes, as long as the signature seal is recognized by the parties signing the contract, it is legally binding. However, because the signature seal is easy to engrave, the public security organs do not have a strict registration and filing system. Anyone who gets the signature seal can engrave it by themselves, and then stamp any commitment, receipt or other written document. And use this as evidence to form evidence against the parties in legal proceedings, and it is recommended that the parties keep it properly.

Legal basis: Article 490 of the "People's Republic of China and Civil Code" Where the parties conclude a contract in the form of a contract, the contract is established when both parties sign, seal or fingerprint. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Laws and administrative regulations stipulate or the parties agree that a contract should be concluded in written form. If the parties do not use written form but one party has performed its main obligations and the other party accepts it, the contract is established.