Legal analysis: Yes. As long as it is the true intention of the parties and does not violate the mandatory or prohibitive provisions of laws and regulations, it will take effect after the parties clearly agree on the content and all parties sign it. Notarization is not a necessary condition for the "effectiveness" of civil agreements. Notarization will only make civil agreements more effective. When a dispute is brought to court, the notarized agreement can be directly adopted as evidence. Unless there is evidence to the contrary to prove that the notarization is wrong, the court may require the parties to give evidence for cross-examination again.

Legal basis: Article 11 of the Notary Law of People's Republic of China (PRC). The notary office shall handle the following notarization matters according to the application of natural persons, legal persons or other organizations: (1) contracts; (2) inheritance; (3) entrustment, declaration, gift and will; (4) division of property; (5) Bidding and auction; (6) Marital status, kinship and adoption; (seven) birth, survival, death, identity, experience, education, degree, position, title, whether there is a criminal record; (8) Articles of association; (9) Preserving evidence; (ten) the signature, seal and date of the document, and the copy and photocopy of the document are consistent with the original; (eleven) other notarization matters voluntarily applied by natural persons, legal persons or other organizations. For matters that should be notarized according to laws and administrative regulations, the relevant natural persons, legal persons or other organizations shall apply to the notary office for notarization.