The purpose of this paper is to examine the Measures against Risks in International Investment Agreement: focusing on Umbrella Clause and MIGA. Umbrella Clauses have become a regular feature of international investment agreements and have been included to provide additional protection to investors by covering the contractual obligations in investment agreements between host countries and foreign investors. The meaning of umbrella clauses is one of the most controversial issues with which international arbitral tribunals have been recently confronted with while adjudicating investment disputes brought before them MIGA issues guarantees against non-commercial risks for investments, such as: currency transfer restrictions, expropriations, war and civil disturbances and breach of contract by host governments, and the case that the investor obtains an arbitration award or judical decision for damages and is unable to enforce it after a specified period. Furthermore, MIGA undertakes a wide range of mediation activities designed to remove obstacles to the flow of foreign direct investment in its developing member countries.