Introduction In this document we will discuss how to develop strategic management and leadership skills. These are four fundamental steps that we will discuss in detail in this study. In this article, several cases of different organizations are mentioned and studied, including Martin McColl, Apple, Microsoft, Mc Donald's and Lincoln Electric. Relationship between leadership and strategic management For this reason it is necessary to first explain the relationship between these two terms. In the second step, we analyze the impact of management and leadership styles on strategic decisions and then discuss the adaptation of leadership styles in many situations. Link between strategic management and leadershipStrategic management includes a company's resources such as human, material, financial, organizational resources to achieve its core objectives effectively. Whereas leadership is a method of organizing, managing, directing and controlling a company's workers to influence them to work in pursuit of a company's goals and mission. These two terms can be interchanged in strategic management. Managing strategic activities requires effective leadership. Leaders are assigned the responsibility of setting goals and making decisions for the company. Impact of Leadership Styles and Management on Strategic Decisions Understanding, finding and developing leadership is a major concern of an organization. Leadership plays an important role in building highly dedicated teams. Due to the change in the nature of the organization and the complexity of the environment, leaders are now facing many difficulties and challenges than before. Today, the world requires more than just competitiveness and constant profitability. The training was delivered under the supervision of actual leaders of the organization. Through these methods, Lincoln Electric has faced different situations and challenges and become a successful organization. Conclusion In this article, the relationship between leadership and strategic management has been discussed and studied with an example of Martin McColl. In the second part, management and leadership theories were applied and analyzed by providing examples of Bill Gates and Steve Job. The last part of the paper suggests some strategies for Lincoln Electric to develop leadership skills. Through this study we can conclude that leadership plays a vital role in the success and strategic management of an organization.