A train control system comprising: ground radio communication means that transmits and receives information with on-board radio communication means of a train; ground communication means that is installed at a predetermined stop position at which the train stops, and transmits and receives information with the on-board communication means of the train; interlocking control means that performs a conversion of a point and a locking of a route; and ground control means that calculates a stop limit position to be given to each train, based on a train position and an opening state of a train route, and controls the interlocking control means so as to perform operation control of each train in a predetermined section; wherein the ground control means: calculates a first stop limit position such that the train does not enter a calculated radio communication disruption section including all or part of a section in which the radio communication is disrupted between the ground radio communication means and the on-board radio communication means; calculates, with respect to a train that is made to travel through the calculated radio communication disruption section, a second stop limit position so that the train reaches up to a position of the ground communication means; and in a state in which all or part of the train resides in the calculated radio communication disruption section, with respect to the train of which the radio communication is disrupted, estimates a current train position, based on an end position of the calculated radio communication disruption section in a train traveling direction, the second stop limit position, and a lastly received train position, and performs operation control of each train. ground radio communication means that transmits and receives information with on-board radio communication means of a train; ground communication means that is installed at a predetermined stop position at which the train stops, and transmits and receives information with the on-board communication means of the train; interlocking control means that performs a conversion of a point and a locking of a route; and ground control means that calculates a stop limit position to be given to each train, based on a train position and an opening state of a train route, and controls the interlocking control means so as to perform operation control of each train in a predetermined section; wherein the ground control means: calculates a first stop limit position such that the train does not enter a calculated radio communication disruption section including all or part of a section in which the radio communication is disrupted between the ground radio communication means and the on-board radio communication means; calculates, with respect to a train that is made to travel through the calculated radio communication disruption section, a second stop limit position so that the train reaches up to a position of the ground communication means; and in a state in which all or part of the train resides in the calculated radio communication disruption section, with respect to the train of which the radio communication is disrupted, estimates a current train position, based on an end position of the calculated radio communication disruption section in a train traveling direction, the second stop limit position, and a lastly received train position, and performs operation control of each train. calculates a first stop limit position such that the train does not enter a calculated radio communication disruption section including all or part of a section in which the radio communication is disrupted between the ground radio communication means and the on-board radio communication means; calculates, with respect to a train that is made to travel through the calculated radio communication disruption section, a second stop limit position so that the train reaches up to a position of the ground communication means; and in a state in which all or part of the train resides in the calculated radio communication disruption section, with respect to the train of which the radio communication is disrupted, estimates a current train position, based on an end position of the calculated radio communication disruption section in a train traveling direction, the second stop limit position, and a lastly received train position, and performs operation control of each train.