A system for detecting swelling of a battery cell, the system comprising: one or more battery cells embedded in a battery pack; a detecting unit which includes pressure measuring sensors and is configured to measure a pressure applied to the pressure measuring sensor according to a change in volume of each of the one or more battery cells; a switch unit provided in a connection path between the battery pack and an external power source; and a control unit which is configured to control an opening/closing operation of the switch unit based on a measurement result of the detecting unit, wherein the detecting unit is configured to convert a pressure applied to the pressure measuring sensor into a voltage value or a current value and to provide the converted voltage value or current value to the control unit wherein the control unit is configured to compare the voltage value or the current value received from the detecting unit with a predetermined threshold value, and when the voltage value or the current value exceeds the predetermined threshold value, the control unit is configured to provide an opening operation signal to the switch unit, wherein when the voltage value or the current value exceeds the predetermined threshold value, the control unit is configured to provide an off operation signal to a separate peripheral device, and the separate peripheral device is one of an air-cooling type fan and a water-cooling type cooling valve,and wherein when the voltage value or the current value does not exceed the predetermined threshold value, the control unit is configured to provide a closing operation signal to the switch unit. one or more battery cells embedded in a battery pack; a detecting unit which includes pressure measuring sensors and is configured to measure a pressure applied to the pressure measuring sensor according to a change in volume of each of the one or more battery cells; a switch unit provided in a connection path between the battery pack and an external power source; and a control unit which is configured to control an opening/closing operation of the switch unit based on a measurement result of the detecting unit, wherein the detecting unit is configured to convert a pressure applied to the pressure measuring sensor into a voltage value or a current value and to provide the converted voltage value or current value to the control unit wherein the control unit is configured to compare the voltage value or the current value received from the detecting unit with a predetermined threshold value, and when the voltage value or the current value exceeds the predetermined threshold value, the control unit is configured to provide an opening operation signal to the switch unit, wherein when the voltage value or the current value exceeds the predetermined threshold value, the control unit is configured to provide an off operation signal to a separate peripheral device, and the separate peripheral device is one of an air-cooling type fan and a water-cooling type cooling valve,and wherein when the voltage value or the current value does not exceed the predetermined threshold value, the control unit is configured to provide a closing operation signal to the switch unit.