The reason why the membership conditions of China Eastern Platinum Card require good personal credit information is because credit cards are credit payment tools, and personal credit information has a bad record, which will affect the applicant's credit rating, thus affecting his credit card application and credit line.

The membership conditions of China Eastern Platinum Card also require that the applicant must be a member customer of China Eastern Airlines. This is because China Eastern Airlines is a large airline with a huge membership system and a loyal customer base, so only the members of China Eastern Airlines can enjoy the exclusive rights and services of China Eastern Airlines Platinum Card members.