Legal analysis: their parents go to the social security office or tax bureau where their household registration is located to declare registration and payment; If the children of migrant workers study in Huizhou, the social security office of the town (street office) where they study will handle the insurance payment.

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 guarantee citizens' right to receive material assistance from the state and society in case of old age, illness, industrial injury, unemployment and maternity.