Legal analysis: If a party wants someone else to get the diploma on his behalf, he must issue a power of attorney, which will be signed or sealed by himself, so as to have the expected effect.

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

Article 162 A civil juristic act carried out by an agent in the name of the principal within the scope of his agency authority is effective for the principal.

Article 165 If the power of attorney is in written form, it shall specify the name of the agent, the matters to be represented, the authority and the time limit, and shall be signed or sealed by the principal.