An electrostatic detection sensor comprising: a sensor body including a first electrode, and a second electrode surrounding the first electrode while being spaced from the first electrode; and a controller connected to the first electrode and the second electrode, wherein the controller is configured to: obtain a first sensed intensity corresponding to a capacitance of the sensor body while the first electrode is connected to the second electrode; obtain a second sensed intensity corresponding to a capacitance of the first electrode by applying a first driving voltage to the first electrode while the second electrode is grounded to a ground potential; obtain a third sensed intensity corresponding to a capacitance of the second electrode by applying a second driving voltage to the second electrode while the first electrode is grounded to the ground potential; and determine whether an object approaches the sensor body or not based on a first calculation value (ΔX) corresponding to a change of the first sensed intensity with respect to time, a second calculation value (ΔY) corresponding to a change of the second sensed intensity with respect to time, and a third calculation value (ΔZ) corresponding to a change of the third sensed intensity with respect to time. a sensor body including a first electrode, and a second electrode surrounding the first electrode while being spaced from the first electrode; and a first electrode, and a second electrode surrounding the first electrode while being spaced from the first electrode; and a controller connected to the first electrode and the second electrode, wherein the controller is configured to: obtain a first sensed intensity corresponding to a capacitance of the sensor body while the first electrode is connected to the second electrode; obtain a second sensed intensity corresponding to a capacitance of the first electrode by applying a first driving voltage to the first electrode while the second electrode is grounded to a ground potential; obtain a third sensed intensity corresponding to a capacitance of the second electrode by applying a second driving voltage to the second electrode while the first electrode is grounded to the ground potential; and determine whether an object approaches the sensor body or not based on a first calculation value (ΔX) corresponding to a change of the first sensed intensity with respect to time, a second calculation value (ΔY) corresponding to a change of the second sensed intensity with respect to time, and a third calculation value (ΔZ) corresponding to a change of the third sensed intensity with respect to time. obtain a first sensed intensity corresponding to a capacitance of the sensor body while the first electrode is connected to the second electrode; obtain a second sensed intensity corresponding to a capacitance of the first electrode by applying a first driving voltage to the first electrode while the second electrode is grounded to a ground potential; obtain a third sensed intensity corresponding to a capacitance of the second electrode by applying a second driving voltage to the second electrode while the first electrode is grounded to the ground potential; and determine whether an object approaches the sensor body or not based on a first calculation value (ΔX) corresponding to a change of the first sensed intensity with respect to time, a second calculation value (ΔY) corresponding to a change of the second sensed intensity with respect to time, and a third calculation value (ΔZ) corresponding to a change of the third sensed intensity with respect to time.