This study aims to determine to know the relationship of short term and long term of dualism monetary instrument, in conventional there is SBI, and PUAB, money supply (M2) and in islamic instrument there is SBIS,PUAS and money supply (M2). The approach used is a quantitative approach using VAR/VECM. The results of the analysis most contribution most retrieved from M2 variable. While conventional instrument rated the more stable and able to provide higer valure campared to islamic instruments. The result showed that variable of SBIhave positive significant corelation in long term and has contributions reached 10,1%. PUAB variable showed that have significant in long term by giving contribution of 4,68%. Next in islamic instrument, SBIS significant on long term by providing a contribution amount 1,01%, while PUAS have a significant in long term with contribution reached 25,27%. The results of the analysis most contribution most retrieved from M2 variable.