Participative leadership is one of the most important human trends of school leadership and institutions of education. The study aimed to identify the degree of application of participative leadership by school leaders at Ihsa governorate, Saudi Arabia, and its correlation to teacher's professional development in the light of some variables. The study sample comprised (241) education leaders from both sexes throughout the school year 2018/2019. To collect data, an important three-part instrument developed incorporating participative leadership and its correlation to teacher's professional development. Cronbach coefficient of instrument validation was (0.97). In analyzing data, arithmetic means, standard deviations, one way ANOVA, and correlation coefficient were calculated. Results of the study showed that the degree of application of the total process was high. They also showed that there was a relation with statistical significance at the level (0.01) between participative leadership with its dimension and professional development. The results also showed that there were no differences with statistical significance in answers of sample members which might be attributed to study variables at the level (a=0.01). The study recommended intensifying training courses for school leaders with regard to participative leadership, in addition to, supporting and widening teachers' participation in school leadership.