Abstract：The regulated development of platform economy stipulates the protection of citizen data right, which includes personality right and property right to data. The personality right is composed of the right to know, to consent, to modify and to be forgotten while the property right consists of the right to acquire and use, to carry and to benefit. Citizen data right is synchronized with the Internet, big data, blockchain and artificial intelligence technologies, changing with social conditions. It is the bundle of rights in the changing scene. The endogenous characteristics of the platform economy, the appeal for fairness of the network platform and the justice of the platform data algorithm provide the legitimacy for citizen’s right to data. The possibility of citizen's right to data in the development of platform economy are realized by protecting the citizen's right to data. “Data public goods” regards the protection of the data right as a kind of public goods, and proposes that the protection of such a right as a public goods should be done in the whole process with no exceptions, be the result of the cooperative supply of multilateral subjects on the network platform, and its collective action dilemma be solved by the ethical design of algorithm.
