Abstract: A portable terminal to provide social network service using human body communication includes a human body communication unit to transmit or receive data through a human body, a memory unit to store at least one of social data, user data, reference data, and any additional data collected, a contact object identifying unit to identify a contact object by using the data received by the human body communication unit, and a pattern analyzing unit to analyze a pattern of contact with the contact object using the data stored in the memory unit. A method for providing social network service using human body communication includes sensing a human body contact, identifying a contact object, and analyzing a pattern of contact with the contact object using at least one of social data, user data, reference data and any additional data collected.