Countries are actively seeking today to attract foreign capital. The most important aspect of attracting foreign capital consists of supporting economic development in the host country and ensuring its long-term economic stability. In addition, there are other benefits such as technology transfer and technical expertise, and the training of national labor. To promote foreign investment, the Omani government enacted a set of laws, the most important of which is the Foreign Capital Investment Law issued by Royal Decree No. 50/2019. The strength and robustness of the national legislation and the guarantees and incentives it contains for the foreign investor can steer effectively foreign investors. However, all incentives and guarantees are not sufficient for the foreign investor unless the means for settling disputes that the foreign investor may be exposed to in the host country are effective. Effective alternative dispute resolution is a procedural guarantee of interest to foreign investors which they always seek to maintain the stability of the investment given the money, time, and effort they will spend. The Omani legislator has enacted methods for settling foreign investment disputes through the Foreign Capital Investment Law issued by Royal Decree No. 50/2019. The legislator listed some means for settling foreign investment disputes, which required studying in terms of their adequacy and effectiveness in settling foreign investment disputes, through Three chapters. Those are: the introductory chapter, which helps to understand the terms and types of foreign investment, a chapter on amicable means for settling foreign investment disputes - mediation, negotiation and conciliation - and a final chapter dealing with means for the adjudication of the dispute - the judiciary and arbitration. Last chapter distinguishes one from the other and researches the extent of its effectiveness to resolve the dispute in accordance with Omani laws and its ability to attract investors by examining the Omani law and others legislations.