In this article the dynamics influencing armament development planning have been characterized by the authors. Th e most important tendencies in determined areas of security environment (geographical, political, economic, demographic, ethnic, civilization) have been described as a reflection on development of present armament systems and visions of its future. Th e procedure of perspective planning of armament system development has been presented taking into account necessary forecast information connected with evolution of security environment. Selected parts of planning procedure have been illustrated by some examples that include determined types of armament. Th e conclusions formulated at the end of article are connected future research on the influence of credibility, accuracy and risk within security environment forecasting.