The occupational adaptation practice model guided the search for and the analysis of the literature on the older worker. The purpose of this literature review was to: identify the occupational challenges that older workers experience, determine ways in which the occupational therapist can promote the occupational adaptation of older workers, and articulate the research and policy changes implied in the model related to health and improved productivity. The analysis of the worker's personal characteristics, work tasks, and environments highlighted the types of occupational challenges that may overwhelm the older worker's adaptive capacity. Straining adaptive capacity of the older worker leads to degradation in levels of mastery. The occupational therapist and others could assist the older worker to achieve relative mastery in response to occupational challenges through ergonomic solutions, training, assistive devices, management policy, and health promotion. Combined efforts of the employer, of the occupational therapist, and of the older work to capitalize on the older worker's years of experience, existing skills, and knowledge facilitates higher job satisfaction, better performance, and an increased sense of well-being in the older worker.