A degradation estimation system of railroad ground equipment for estimating a degradation of railroad ground equipment, comprising: a processing unit (102, 105, 107, 109, 110) which is configured to simulate, based on corresponding railroad section timetable information on a timetable of a plurality of trains running on a corresponding railroad section to be simulated, an operation mode of equipment disposed on the corresponding railroad section; and an estimation unit (112, 114) which is configured to aggregate each processing result of the processing unit (102, 105, 107, 109, 110) and is configured to estimate a degradation of the equipment from the aggregation result, characterized in that the processing unit (102, 105, 107, 109, 110) is configured to input peripheral railroad section timetable information on a timetable of each train which runs on a peripheral railroad section disposed on a periphery of the corresponding railroad section, and is configured to simulate, as the operation mode of the equipment, at least one of either an operating frequency or an operating time of equipment among each of the equipment disposed on the corresponding railroad section comprising equipment that is impacted by the peripheral railroad section timetable information based on, in addition to the corresponding railroad section timetable information: each piece of peripheral railroad section timetable information that was input; and equipment information providing a relation between equipment, which is disposed on each of the railroad sections, and each of the respective railroad sections. a processing unit (102, 105, 107, 109, 110) which is configured to simulate, based on corresponding railroad section timetable information on a timetable of a plurality of trains running on a corresponding railroad section to be simulated, an operation mode of equipment disposed on the corresponding railroad section; and an estimation unit (112, 114) which is configured to aggregate each processing result of the processing unit (102, 105, 107, 109, 110) and is configured to estimate a degradation of the equipment from the aggregation result, characterized in that the processing unit (102, 105, 107, 109, 110) is configured to input peripheral railroad section timetable information on a timetable of each train which runs on a peripheral railroad section disposed on a periphery of the corresponding railroad section, and is configured to simulate, as the operation mode of the equipment, at least one of either an operating frequency or an operating time of equipment among each of the equipment disposed on the corresponding railroad section comprising equipment that is impacted by the peripheral railroad section timetable information based on, in addition to the corresponding railroad section timetable information: each piece of peripheral railroad section timetable information that was input; and equipment information providing a relation between equipment, which is disposed on each of the railroad sections, and each of the respective railroad sections. each piece of peripheral railroad section timetable information that was input; and equipment information providing a relation between equipment, which is disposed on each of the railroad sections, and each of the respective railroad sections.