New Product Development and its significance for companies, as a new approach, which has some risks, but the key factors identification of this approach can be helpful in decreasing risks in managers’ decision-making. In this research it is tried, through library studies and consulting with teachers, managers and experts in departments related to product development in SAIPA Automobile Group, to identify the key factors and their indicators as much as possible. So by pre-test from 12 experts, 4 key factors of technology, marketing, commercializing, and product development team management are determined and the importance of indicators are identified and 5 important indicators are chosen for each factor and 21 reliable questionnaires were gathered from 23 managers and experts in related departments (product development strategy, technical and providing-parts and marketing departments) through Analytical Hierarchical Process test approach. After compatibility ratio test, ideas were put together and the importance of factors and indicators was determined through pair comparison. Therefore, marketing, product development team management, technology and commercializing are known as the key factors in which knowing and determining the priority of these factors in gathering and implementing product development strategy accelerate and facilitate the success procedure and decrease the decision-making risk.