Abstract: A great deal of uncertainty,especially the factors of uncertainty of macrodynamic field,should be dealt with in decision making of new product development in enterprises,and the cognition of managers to these factors of uncertainty could influence the decision making of new product development.Based on findings of previous studies,in this paper the properties of uncertainty of macro-dynamic field were explored with a questionnaire in which 121 managers from 15 enterprises in three areas of China were involved.The main dimensions of form variation of the factors from external environment were verified:motility,tendency and duration. The total uncertainty of dynamic field consisted of“the uncertainty of business information,upper-level management and recruitment,supply and public relations”.The theoretical significance and the practical values of the research for the decision making of new product development in enterprises in terms of studying cognition of managers were discussed finally.

Key words: managers, decision-making, macro-dynamic field, cognition