Nowadays, the development of transactions in finacial institution very rapidly, both in the new contracts, development of contracts that already exist, or a combination of the two contracts that have been established. This is a response of financial institutions to the need of modern society, as well as an effort to give alternative business transactions to its customers.Derivatifs transactions is hybrid investment, grafts from the original, or new transactions arising as a form of deviation or development or specificity of the transactions that have been established. These transactions usually have patterns similiar to original transactions, but there are different things that are influenced by certain considerations such as tradition, mashlahah, etc. As for the models of derivatif transactions in islamic financial institution are : the merging model (include : mudarabah mushtarakah, bai’ ‘inah, bai’ tawarruq, bai’ wafa and beli gadai emas), improvement ( include : mudarabah and musharakah with jaminan, mudarabah and musharakah parrarel, and rahn tasjily), and qiyas model (include :  paroan, pro telon, pro papat, etc).Ulama have argued that derivatif transactions based on the principle “al-ashlu fi al-mu'amalah al-ibahah, hatta yadullu al-dalil 'ala tahrimihi. Departing from this principle, then the Ulama allow, ikhtilaf, and forbid the derivatif transaction. Keywords; transaksi derivatif, lembaga keuangan syariah.