In the era of big data, data is sharing, and sharing values based on group rationality and contractual spirit have gradually become the main ethical spirit in the era of big data. The main ethical effect of sharing values in the era of big data lies in solving the problem of information asymmetry, at the same time breaking the phenomenon of “information island” formed by information barriers, and promoting the sharing, circulation and value transformation of information. In the era of big data, sharing values are faced with the contradiction between high-cost acquisition and low-cost sharing of information, the potential risk of shared data being polluted, and the information sharing behavior strengthens the “reverse domestication” of media, and the “data gap” aggravates the unequal challenge of information dissemination. To practice sharing values, it is necessary to grasp the “balance point” of rights between information acquirers and sharers, and strengthen social supervision and the rule of law to ensure the scientific and accurate information; Fully tap the role of intelligent technology in the construction of information ethics to avoid the trap of “over-entertainment” of data; Pay attention to the universality and fairness of sharing to promote responsible and valuable sharing of information and data.