Legal analysis: the current law does not clearly stipulate that contracts should be signed in block letters, and the handwriting should be clear and neat. The pen for signing the contract needs to be prepared with normal writing to avoid the existence of functional pens with faded handwriting after signing.

Legal basis: Article 469 of the Civil Code of People's Republic of China (PRC), the parties may conclude a contract in written form, 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.