Described in the article is an integrated approach to forecasting the ground complex (GC) lifetime indexes based on creation of structural models of limit state reaching, including events connected with both GC equipment elements failures and dynamics of possible resource recovery. At that, it is possible to consider different types of criteria of individual GC component parts transition to limit state.A characteristic of the main stages of forecasting the lifetime indexes with the use of structural models of reaching the ground complex limit state is also given therein.