A method and system for determining a property of a user in a social network platform are provided according to some embodiments of the present disclosure. The method includes: determining a property of a seed user in the social network platform; determining a property of a social network platform function interacting with a user according to a property of the user in the social network platform; and determining a property of a user interacting with a social network platform function according to a property of the social network platform function. By the embodiments of the present disclosure, the property of the user in the social network platform can be determined accurately.