Forecastmg and allocatmg armament overhaul cost 1S a significant problem of the management for usmg armament. First, this thesis makes a general describe and study on correlative problems of armament overhaul cost. Based on 1t, macroscopical forecast models are founded. Then , former m1crocosmic forecast models are 1mproved, and new m1crocosmic forecast models are founded. Furthermore, the new models are validated with practical data , and the result shows that new models are more accurate. At the same t1me, allocatmg methods and models are brought forward. The eHectiveness/cost rat10 of armament overhaul will be improved by means of the allocatlOn methods and models. The productlOn 1S powerful to support armament manage branch's reasonable decision-making.