Enterprise seal refers to the trade union as the symbol of legal entity, which represents the entity in legal documents such as documents and contracts according to law. The official seal of an enterprise is usually a special seal with legal effect, which is applied and engraved by the trade union to the relevant departments after the unit has registered as a legal person according to law.

Legal person signature refers to the signature used by the legal representative in legal affairs. In some cases, the legal representative of the trade union may sign legal documents, contracts, etc. I represent the trade union. The signature of a legal person is generally the signature of the legal representative of the trade union, and his position is stated.

Therefore, the trade union legal person seal and legal person signature are different concepts and forms. The trade union legal person seal is a special seal with legal effect, and the legal person signature is the signature used by the legal representative in legal affairs.