This corner stone of this dissertation is the legal technique offered by Omani law to protect the rights of the minority of shareholders in joint stock companies. The thesis explaining the role of shareholders in managing joint stock companies and declare the real effect of such a role. The responsibility of the majority shareholders in joint-stock companies towards the minority shareholders has been declared. Moreover, the thesis inspects the role of courts and other supervisory authorities guaranteeing the balance between the shareholders in joint-stock companies. Lack of legal studies exploring protection of rights of the minority of shareholders in Omani law, and vague of Omani legal rules providing such protection, comparing other comparative laws, allow the researcher to discuss the most important means of protection of rights of minority shareholders, and the efficiency of such means. The researcher applying the analytical and comparative research methods to analyses the Omani law of commercial companies comparing other Arab legislations in the field of protection of minority of shareholders