This study sought to provide an understanding of the sources of work intensification and its effects on assistant principals in Turkey, and the coping strategies they use. The participants of this qualitative study were a sample of 18 assistant principals. The current qualitative study was based on semi-structured interviews. Data analysis was performed through descriptive and content analysis. This study revealed that assistant principals had work intensification related to heavy paperwork, a variety of administrative affairs, a variety of tasks, school size, and lack of experience. Assistant principals' work intensification caused negative psychological and physical health, work-family conflict, limited social relationships, and a decrease in professional commitment. Assistant principals spent time with their families, engaged in task sharing, received support from colleagues, took part in various social events, planned work habits and managed priorities to reduce the negative effects of work intensification.