Why can't the social security card check the medical insurance balance?

Legal analysis: The situation is different in different places, and the personal account balance on the medical insurance card cannot be inquired, which has a lot to do with the local medical insurance information system. Or it has a lot to do with the query method. You can bring your social security card or ID card directly to the medical insurance agency in the insured area, or you can call the local social security consultation telephone number 12333.

Legal basis: Article 2 of the Social Insurance Law of People's Republic of China (PRC) The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance, maternity insurance, etc., to protect citizens' right to get material help from the state and society according to law in case of old age, illness, industrial injury, unemployment and maternity.