Certification standards and purposes are different. By inquiring about the regulations of Xuexin.com, Ministry of Education, Xuexin.com certification is mainly for the convenience of students and employers to inquire about students' academic qualifications and school information. The reason why Xiaomi's preferential education can't pass the Xuexin.com certification is that the certification standards and purposes are different. Xuexin.com certification is to inquire about academic qualifications and student status information, while Xiaomi education discount is to verify the identity and qualification of educators in order to enjoy relevant preferential policies.