The present invention relates to a social media service device using a social relation between accounts based on a transaction ledger which can calculate a value scale of each account from a social relation between derived accounts. The social media service device using a social relation between accounts based on a transaction ledger comprises: a data storage part storing account information, social relation information between accounts, value scale information of account, and social media service information; and a processor enabling transaction between users possessing the accounts, and performing data processing and transmission/reception for supporting community activity by using the derived social relation between the accounts and the calculated value scale from the derived social relation between the accounts.;COPYRIGHT KIPO 2018
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