Occupational science is an emerging academic discipline based on the traditional values ​​and beliefs of occupational therapy practice as articulated by Adolph Meyer (Yexer, 1993), (Reilly, 1962) and others. It draws on a range of theories, research methodologies and approaches to understanding humans as professional beings. Furthermore, it assumes that people's experiences of engaging in meaningful and purposeful occupations influence both performance and intrinsic motivation (Haertl, 2007)(Wilcock, 2001) and states that it is essential to break down into professions and science. Occupations are daily activities that structure life, reflect cultural values, and have meaning for individuals. Additionally, science involves gathering knowledge through systematic reviews, randomized controlled trials, and available resources that inform practice. The information sought by the therapist is that which has been critically evaluated by other authors for its validity and interpretability during treatment planning and implementation. This evidence-based practice is generally defined as “the conscientious, explicit and judicious use of the best current evidence to make decisions regarding the management of individual patients” (Dirette et al, 2009). Occupational science in practice allows therapists to understand the patient as a professional being, thereby enabling the therapist to implement occupational therapy-focused assessments, particularly during the early stages of occupational therapy. process. An understanding of occupation and its scientific dimension allows the therapist to acquire knowledge about how patients orchestrate their lives through the exercise of occupations in a given context. The occupational therapy process...... middle of article ......computer-based knowledge to inform therapeutic practice. It also helps deepen the therapist's knowledge of humans as professional beings as well as the relationship between occupation and health. (Yexer, 1993) introduced occupational science as a fundamental science supporting occupational therapy, with the aim of refocusing the provision of therapy on occupation. Thus, the science of occupational therapy supports therapists, justifies the meaning and uniqueness of the profession, and distinguishes occupational therapy from other professions. Furthermore (Wilcock, 2001), also points out that occupational science could be another way to avoid the possible failure of occupational therapy as a practice. With a strong research background, occupational therapists could make a contribution to medical science, which could challenge it from a different perspective..