Background: The first step for the establishment of academic-service partnership programs is identification of mutual benefits. The rate of achievement of these benefits reflects the success rate of the partnership program. This study aimed to develop an achieving mutual benefits scale in nursing academic-service partnership programs. Method: The AMBS was developed based on an analysis of the concept of mutual benefits in nursing academic-service partnership programs by the hybrid model approach. Findings of the concept analysis study was used to produce items pool. Then, the psychometric properties of the scale were evaluated using face, content and construct validities, and internal consistency, and stability for reliability. Results: The AMBS consists of 44 items. Exploratory factors analysis supported six factor with an explained variance of 59.06%. The Cronbach’s α, and Omega coefficient of the scale respectively ranged from 0.77 to 0.93, and 0.75 to 0.9. The content validity index of 0.97, and internal consistency of 0.76 were obtained for the final scale. Conclusions: The AMBS is a valid and reliable scale for the measurement of the mutual benefits achievement rate in nursing academic-service partnership programs in six dimensions of research synergy, managers' synergy in the student education, development of nursing services, reducing the theory-practice gap, and access to the supportive learning environment. It is necessary to consider all dimensions in organizing these programs and assessing the success rate of them.