With the emergence of big data and data economy，data is increasingly becoming a new type of property with great value.Meanwhile the relationship between personal information and data economy is becoming more complex.In terms of adjusting the relationship between personal information and data，traditional regulations could adopt three types of protection methods，i.e.，the protection of personality right，the personal information authorization use contract，or the administration model.However，these methods cannot actually meet the requirement of reasonably adjusting such relationship，no matter by combined or by single application.The current legal construction regarding the relationship between personal information and data，under circumstances of data economy，should consider the structural essence of data economy，especially its dual-direction dynamic character.Thereby a more complicated rights allocation should be applied.The trend of data economy and data capitalization has facilitated the development of data propertilization，which lead to the establishment of a new property type.However，the relevant theory still needs to be further developed.From the prospect of legal framework，it is necessary to set up a two-stage right based on the distinction between personal information and data assets.Firstly，at the level of personal information or original data，individuals should be entitled with personality right and property right.Secondly，under circumstances of data capitalization，data operators should be entitled to exercise their operating right and property （asset） right，based on the requirement of data operation and profit-driven mechanism.