Servant leadership, as a leadership style characterised by serving followers, is closely related to employees' innovative behaviour. Therefore, the aim of this research is to develop a theoretical framework to examine the influence of servant leadership on employees' innovative behaviour, with the mediating roles of affective commitment and creative self-efficacy. To test the theoretical model, we collected data from 200 employees of SMEs in Indonesia. The data was processed using SmartPLS software. The results obtained from previous research indicate that servant leadership not only exerts a stronger influence on innovative behaviour but also explains additional variance in innovative behaviour and the impact of servant leadership. This study reveals that the role of servant leadership in fostering innovative behaviour within a company is positively related. The findings of this investigation demonstrate that by adopting servant leadership strategies, managers can enhance innovative behaviour by increasing employees' affective commitment and creative self-efficacy.