Legal analysis: Relevant laws stipulate that since a blank contract has no contract content, it is not the true expression of the parties’ intentions, so the blank contract has no legal effect no matter how long it lasts. If a contract party hands over a contract with blank content to the counterparty, it shall be deemed as unlimited authorization of the contract content, and the counterparty can fill in the corresponding content in the blank part. When signing a contract, the rights and obligations should be filled in completely, and signing should be done face-to-face as much as possible to avoid signing a blank contract. There is a huge legal risk in signing a blank contract and then handing the contract over to the other party, that is, no matter what the other party fills in the blank contract, it will be binding on both parties.

Legal basis: "The People's Republic of China and the Civil Code"

Article 143 A civil legal act that meets the following conditions is valid: (1) The actor has the appropriate capacity for civil conduct; (2) the expression of intention is true; (3) it does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.

Article 465 A contract established in accordance with the law shall be protected by law. A contract established in accordance with the law is only legally binding on the parties, unless otherwise provided by law.

Article 470 The content of the contract is agreed upon by the parties and generally includes the following terms: (1) Name and address of the parties; (2) Subject matter; (3) Quantity; (4) Quality ; (5) Price or remuneration; (6) Time limit, place and method of performance; (7) Liability for breach of contract; (8) Methods of resolving disputes. The parties may conclude a contract by referring to the model texts of various types of contracts.