A sensor inserting device for inserting a detector of a sensor which measures biological information of a person to be measured into a body of the person to be measured, the sensor inserting device comprising: a device body ; and a movement mechanism which is provided in the device body and inserts the detector and the insertion needle into a body of the person to be measured by moving the sensor together with the insertion needle which is pierced into the body of the person to be measured, wherein a signal processor which processes a signal including biological information from the sensor is attached to the device body , and the signal processor is connected to the sensor and allowed to dwell on a skin of the person to be measured at a location of insertion in which the detector is inserted into the body of the person to be measured, wherein said sensor inserting device further comprises: a dwelling member which is arranged on a moving path of the sensor and attached to the sensor by a movement of the sensor caused by the movement mechanism , characterized in that the dwelling member includes an engaging unit which supports the sensor at the location of insertion, a base which supports a state in which the supported sensor is connected to the signal processor , and an adhesive portion which sticks the base on to the skin of the person to be measured, wherein on a distal end portion of the device body , the dwelling member is arranged, and a signal processor displacement mechanism which allows the signal processor to slide toward the base , after inserting the detector into the body of the person to be measured, so as to be supported by the dwelling member . a device body ; and a movement mechanism which is provided in the device body and inserts the detector and the insertion needle into a body of the person to be measured by moving the sensor together with the insertion needle which is pierced into the body of the person to be measured, wherein a signal processor which processes a signal including biological information from the sensor is attached to the device body , and the signal processor is connected to the sensor and allowed to dwell on a skin of the person to be measured at a location of insertion in which the detector is inserted into the body of the person to be measured, wherein said sensor inserting device further comprises: a dwelling member which is arranged on a moving path of the sensor and attached to the sensor by a movement of the sensor caused by the movement mechanism , characterized in that the dwelling member includes an engaging unit which supports the sensor at the location of insertion, a base which supports a state in which the supported sensor is connected to the signal processor , and an adhesive portion which sticks the base on to the skin of the person to be measured, wherein on a distal end portion of the device body , the dwelling member is arranged, and a signal processor displacement mechanism which allows the signal processor to slide toward the base , after inserting the detector into the body of the person to be measured, so as to be supported by the dwelling member . a dwelling member which is arranged on a moving path of the sensor and attached to the sensor by a movement of the sensor caused by the movement mechanism , characterized in that the dwelling member includes an engaging unit which supports the sensor at the location of insertion, a base which supports a state in which the supported sensor is connected to the signal processor , and an adhesive portion which sticks the base on to the skin of the person to be measured, wherein on a distal end portion of the device body , the dwelling member is arranged, and a signal processor displacement mechanism which allows the signal processor to slide toward the base , after inserting the detector into the body of the person to be measured, so as to be supported by the dwelling member . <EOS>