According to the provisions of the General Principles of Civil Law of People's Republic of China (PRC):

Article 65 Form of principal-agent

The entrustment and agency of civil juristic acts can be in written form or oral form. If the law requires it to be in writing, it shall be in writing. ?

The written power of attorney for entrusted agency shall specify the name, agency matters, authority and time limit of the agent, and shall be signed or sealed by the principal. If the power of attorney is unclear, the client shall bear civil liability to the third party, and the agent shall bear joint liability.

Extended data

According to General Principles of Civil Law of People's Republic of China (PRC) and Civil Law of People's Republic of China (PRC)

Article 61?

After a civil act is confirmed to be invalid or revoked, the property acquired by the parties as a result of the act shall be returned to the party who suffered the loss. The party at fault shall compensate the other party for the losses suffered as a result. If both parties are at fault, they shall bear their respective responsibilities.

If both parties collude maliciously to commit a civil act that harms the interests of the state, the collective or a third party, the property obtained by both parties shall be recovered and returned to the state, the collective or a third party.

Article 62?

A civil juristic act may be conditional, and a conditional civil juristic act shall take effect when it meets the attached conditions.

Article 63?

Citizens and legal persons may carry out civil legal acts through agents.

An agent carries out civil legal acts in the name of the principal within the scope of agency authority. The principal shall bear civil liability for the agent's agency behavior.

In accordance with the provisions of the law or in accordance with the agreement between the two parties, I shall not act as an agent for civil legal acts that should be carried out by myself.

Article 64?

Agents include entrusted agents, legal agents and appointed agents.

The entrusted agent shall exercise the power of agency according to the entrustment of the principal, the legal agent shall exercise the power of agency according to the provisions of the law, and the appointed agent shall exercise the power of agency according to the designation of the people's court or designated unit.

Article 65?

The entrustment and agency of civil juristic acts can be in written form or oral form. If the law requires it to be in writing, it shall be in writing.

The written power of attorney for entrusted agency shall specify the name, agency matters, authority and time limit of the agent, and shall be signed or sealed by the principal.

If the power of attorney is unclear, the client shall bear civil liability to the third party, and the agent shall bear joint liability.

Reference: Baidu Encyclopedia-General Principles of China Civil Law