According to the query of Nanjing public health service platform, the password format of health Nanjing registration is always wrong. Maybe you don't know the password format. When registering in Healthy Nanjing, the password format is required to be: numbers+letters. In other words, your password must contain numbers and letters, not just one. For example, passwords can be set as: 123abc, a 1b2c3, njk789, etc. If your password already conforms to this format, but the prompt is still incorrect, it may be because your password is too simple or too common. In order to ensure the security of your account, it is suggested that you set a more complicated password, such as adding capital letters or special symbols. For example, you can set the password to A 1b2C3! , nJk@789#, ** 123Abc$%**, and so on.