Legal analysis: legal person signature is the signature of legal person organization on bill. As we all know, it is impossible for a legal person to make any signature. In practice, when a legal person needs to sign a bill, the essence is made by a natural person, which is also a general rule. For the way of legal person signature, most theories think that it is limited to the form of seal. Some scholars also believe that the representative can directly sign the name of the legal person in calligraphy, or it can be regarded as the signature of the legal person. The argument is that a natural person can sign by hand, and a legal person should also have the handwritten signature of a natural person. There is no obstacle. But most countries in the world require legal person registration, because legal persons exist in the abstract. Only when a legal person is registered can it be regarded as open, credible and well-known, which is an extremely important guarantee for transaction security. If the natural calligrapher's name is used as the legal person's signature, it may cause a lot of inconvenience because of the fixity of the signer and the instability of the handwriting. If the handwritten legal person names of multiple natural persons are used as legal person signatures, besides the diversity of handwriting, the possibility of signature abuse is obviously increased, which will bring serious consequences. From this perspective, the representative of a legal person can only be a seal, not a legal person name in calligraphy.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 57 A legal person is an organization that has the capacity for civil rights and civil conduct, enjoys civil rights and undertakes civil obligations independently according to law.

Article 58 A legal person shall be established according to law.

A legal person shall have its own name, organization, domicile, property or funds. The specific conditions and procedures for the establishment of a legal person shall be in accordance with the provisions of laws and administrative regulations.

The establishment of a legal person shall be approved by the relevant competent department in accordance with the provisions of laws and administrative regulations.

Article 59 The legal person's capacity for civil rights and civil conduct arises when the legal person is established and disappears when the legal person is terminated.

Article 60 A legal person shall bear civil liability independently with all its property.

Article 61 In accordance with the law or the articles of association of a legal person, the person in charge of civil activities on behalf of the legal person is the legal representative of the legal person.

The legal consequences of the legal representative's civil activities in the name of a legal person shall be borne by the legal person.