According to the?survey data from 535 employees,this paper discusses the mechanism under which a transformational leadership influence employee’s bootleg innovation.Results indicate that:transformational leadership has a positive effect on employee’s bootleg innovation; task conflict mediates such a relation; critical thinking positively moderated the relationship between transformational leadership and task conflict, and also employee?bootleginnovation the whole mediating mechanism.Based on findings of this study,it is beneficial for encouraging or preventing the bootleg innovation of employees?scientifically,so as to give?suggestions?for?organization to manage reasonably and effectively.