Objective study this is to analyze the influence of leadership on performance lecturers at a Private College in Semarang City and the influence of motivation on performance Work lecturers at Private Universities in Semarang City. The research was conducted at private universities in Semarang City. Techniques for data analysis in the study: Descriptive analysis using Structural Equation Modeling (SEM) is used. The results of the study show that leadership is formed from the indicators of Attributed Charisma, Inspirational Motivation, Intellectual Stimulation, and Individualized Consideration, with the largest contribution coming from Individualized Consideration, which is reflected in the statement that the rector provided direction during the implementation of the Lecturer Working Group (KKD). Meanwhile, work motivation consists of the main indicators of internal and external motivation, with internal motivation providing the largest contribution reflected in the attitude of lecturers in carrying out their duties with full responsibility. Leadership and work motivation have a positive and significant effect on lecturer performance. Good leadership and high motivation can improve lecturer performance, while poor leadership and low motivation can reduce lecturer performance. The results of this study can be used as recommendations for improving the provision of awards to encourage motivation and optimal performance.