A continuous glucose measurement apparatus, comprising: a body attachable unit configured to be insertedly attachable to a body to periodically measure blood glucose; and an applicator in which the body attachable unit is coupled, the applicator configured to outwardly discharge the body attachable unit according to manipulation of a user so that the body attachable unit is insertedly attached to the body, wherein the body attachable unit comprises: a housing configured to be outwardly discharged by the applicator, a sensor unit installed to the housing, wherein one end portion of the sensor unit outwardly protrudes from the housing to be inserted into the body according to outwardly discharging movement of the housing, and a needle unit covering the one end portion of the sensor unit and configured to be separably coupled to the housing to be inserted into the body together with the sensor unit according to the outwardly discharging movement of the housing, wherein the applicator comprises a main case which comprises an outer case and an inner case wherein a pressure button is installed at one side of the main case wherein a plunger body is configured to be coupled and interlocked with a shooting plate and fixed at a first location, and to be released from the interlock with the shooting plate according to the movement of the shooting plate and be moved to a second location by the elastic force of a plunger elastic spring; and a needle extracting unit configured to extract and remove the needle unit from the body by moving the needle unit a direction opposite to an outwardly discharging direction after the needle unit is inserted to the body, wherein the needle extracting unit is configured to move the needle unit by compression restoring force of a needle extracting elastic spring which is a tension spring. a body attachable unit configured to be insertedly attachable to a body to periodically measure blood glucose; and an applicator in which the body attachable unit is coupled, the applicator configured to outwardly discharge the body attachable unit according to manipulation of a user so that the body attachable unit is insertedly attached to the body, wherein the body attachable unit comprises: a housing configured to be outwardly discharged by the applicator, a sensor unit installed to the housing, wherein one end portion of the sensor unit outwardly protrudes from the housing to be inserted into the body according to outwardly discharging movement of the housing, and a needle unit covering the one end portion of the sensor unit and configured to be separably coupled to the housing to be inserted into the body together with the sensor unit according to the outwardly discharging movement of the housing, wherein the applicator comprises a main case which comprises an outer case and an inner case wherein a pressure button is installed at one side of the main case wherein a plunger body is configured to be coupled and interlocked with a shooting plate and fixed at a first location, and to be released from the interlock with the shooting plate according to the movement of the shooting plate and be moved to a second location by the elastic force of a plunger elastic spring; and a needle extracting unit configured to extract and remove the needle unit from the body by moving the needle unit a direction opposite to an outwardly discharging direction after the needle unit is inserted to the body, wherein the needle extracting unit is configured to move the needle unit by compression restoring force of a needle extracting elastic spring which is a tension spring. a housing configured to be outwardly discharged by the applicator, a sensor unit installed to the housing, wherein one end portion of the sensor unit outwardly protrudes from the housing to be inserted into the body according to outwardly discharging movement of the housing, and a needle unit covering the one end portion of the sensor unit and configured to be separably coupled to the housing to be inserted into the body together with the sensor unit according to the outwardly discharging movement of the housing, wherein the applicator comprises a main case which comprises an outer case and an inner case wherein a pressure button is installed at one side of the main case wherein a plunger body is configured to be coupled and interlocked with a shooting plate and fixed at a first location, and to be released from the interlock with the shooting plate according to the movement of the shooting plate and be moved to a second location by the elastic force of a plunger elastic spring; and a needle extracting unit configured to extract and remove the needle unit from the body by moving the needle unit a direction opposite to an outwardly discharging direction after the needle unit is inserted to the body, wherein the needle extracting unit is configured to move the needle unit by compression restoring force of a needle extracting elastic spring which is a tension spring.