Equipment logistics support activities analysis mythology was presented according to operation and maintenance tasks analysis (O&MTA) output outcomes and process model describing equipment logistics support system implementing mechanisms. Equipment logistics support activities frequency and executing time two basic properties were abstracted focused on operational support activities and maintenance support activities. The parameters calculation methods were also given. Finally, the analytic function of logistics support activities frequency and equipments operation mission rates were constructed. Equipment logistics support system support time parameters and support resources employment time parameters were acquired through executing synthesis calculation via to the relations among different support activities locating on different equipment logistics support system levels. So support resources number can be predicted and equipment systems readiness characters can be evaluated. It is proved that the presented model and analysis mythology is effective infrastructure theory support for equipment logistics support development department to design, analysis, and construct support concept.