Smart card, card writing system and method and self-help account opening server

The invention discloses a smart card, a card writing system, a card writing method and a self-help account opening server. The smart card comprises a first receiving unit and a second receiving unit, wherein the first receiving unit is used for receiving attribute data sent by the self-help account opening server; and a first writing unit is used for writing the attribute data received by the first receiving unit into a storage space of the smart card. By the technical scheme, the problem of low convenience of remote read-write cards caused by a remote card writing technology with the necessary help of external read-write card equipment in the prior art is solved.