The invention relates to a system, to a server apparatus, to a terminal apparatus, and to a recording medium for generating a user affinity-based address book, and to a method for generating a user affinity-based address book, which support a user so that the user may intuitively recognize an affinity with a number of other users whose contact information is registered in the address book of the user. The invention is implemented such that: that information on a user's address book is provided; the result of a determination on whether or not the same contact number is shared between the user address book and an address book of each person whose contact information is registered, and the duration and frequency of talks between the user and each person whose contact information is registered; and information on a social address book is generated based on the determined affinity.