Background: The regulation of nursing practice and the development of nursing education curricula both make extensive use of the language of competence. Implementing competency-based education (CBE) is a crucial topic of contemporary educational science generally and nursing education specifically. Nursing educators have intense needs to be trained on such valuable approach. Aim: to determine the effect of implementing instruction module about CBE on educators' knowledge, skills, and attitude at Faculty of Nursing -Damanhour University. Design: A quasi- experimental research design was used. Setting: the study was carried out at the Faculty of Nursing, Damanhur University. Subjects: 62 nurse educators who were selected conveniently and divided into control and study groups and 25 courses' specifications, and 25 courses' matrixes selected conveniently from the previously written courses specification and matrixes. Tools: Three tools were used. Tool (I): "Nurse Educators' Competency- Based Education Knowledge Questionnaire". Tool (II): "Nurse Educators' Competency- Based Education Attitude Rating Scale". Tool (III): "Nurse Educators' Competency- Based Education Planning Skills Rubric". Results: revealed that there was apparent improvement in the study group's scores than control group regarding CBE' knowledge, CBE' planning skills and attitude toward CBE after implementing the CBE' instruction module. Thus, there was a statistically significant difference between the study and control groups after such intervention in favor of the study group. Conclusion: implementing the developed CBE' instructional module among nurse educators in Faculty of Nursing, Damanhour University, Egypt, showed significant value and positive impact in improving nurse educators' CBE knowledge, planning skills and attitude toward CBE. Recommendations: Conducting the study in different nursing faculties in Egypt. Spreading CBE culture between nurse educators and nursing students as an effective mean for better future nursing education career theoretically and clinically.