This aim of study is to determine the effect of leadership style and organizational learning on organizational performance at UPT. Unsyiah Library with organizational innovation as a mediating variable. The sample in this study was taken using a data collection method called the Saturated Sampling Technique (census). The number of samples used was 53 respondents. Primary data collection is done by distributing questionnaires. The analysis used in hypothesis testing with Structural Equation Modeling-Partial Least Square (SEM-PLS) with the WarpPLS version 5.0 program. The results showed that descriptively the leadership style, organizational learning, organizational innovation, and organizational performance had gone well. Then the results of simultaneous testing indicate that leadership style and organizational learning have a significant effect on organizational innovation, leadership style, and organizational learning have a significant effect on organizational performance. Partially shows that leadership style has a positive and significant effect on organizational innovation, organizational learning has a positive and significant effect on organizational innovation, organizational innovation does not significantly influence organizational performance, leadership style has a positive and significant effect on organizational performance, and organizational learning has a positive and significant to organizational performance. Then this study did not find an indirect effect of leadership style and organizational learning on organizational performance through organizational innovation, meaning that organizational innovation does not play a role as a mediating variable (no mediating effect).