The study aimed to analyze saving insurance through blanket guarantee policy and examine the agreement on saving insurance after the establishment of deposit insurance corporation based on Law No. 24 of 2004. This research was normative legal research using statutory approach and conceptual approach. The study indicated that the agreement on saving insurance through the blanket guarantee policy guarantees all bank liabilities with an unlimited amount of guarantee. The implementation of savings insurance through the deposit insurance corporation is considered as limited guarantee, however it covers as many depositors as possible. The guarantee provided by the deposit insurance corporation only covers public deposits in banks (depositors).