A method of measuring biometrics of an object, the method comprising: receiving an image of the object; modeling the object such that at least one part of the object is identified; and measuring biometrics of the object, based on a result of modeling the object; wherein the object is a fetus; wherein: the biometrics is a crown-rump length of the fetus and the modeling of the object comprises modeling the object such that a body and head of the object are identified, and after the modeling of the object, the method further comprising: detecting at least one characteristic point on the head of the fetus; setting a central axis by using the at least one characteristic point, and displaying the central axis; measuring an angle between the body and head of the fetus with respect to the central axis; determining whether the angle falls within a normal range; and measuring a crown-rump length of the fetus, wherein the measuring of the CRL comprises: if the angle falls within the normal range, measuring the CRL of the fetus based on the result of modeling the fetus; if the angle does not fall within the normal range, estimating a model of the fetus corresponding to a case where the angle falls within the normal range, and measuring the CRL of the fetus, based on the estimated modeling result; and displaying the estimated modeling result and the measured CRL. receiving an image of the object; modeling the object such that at least one part of the object is identified; and measuring biometrics of the object, based on a result of modeling the object; wherein the object is a fetus; wherein: the biometrics is a crown-rump length of the fetus and the modeling of the object comprises modeling the object such that a body and head of the object are identified, and after the modeling of the object, the method further comprising: detecting at least one characteristic point on the head of the fetus; setting a central axis by using the at least one characteristic point, and displaying the central axis; measuring an angle between the body and head of the fetus with respect to the central axis; determining whether the angle falls within a normal range; and measuring a crown-rump length of the fetus, the biometrics is a crown-rump length of the fetus and the modeling of the object comprises modeling the object such that a body and head of the object are identified, and after the modeling of the object, the method further comprising: detecting at least one characteristic point on the head of the fetus; setting a central axis by using the at least one characteristic point, and displaying the central axis; measuring an angle between the body and head of the fetus with respect to the central axis; determining whether the angle falls within a normal range; and measuring a crown-rump length of the fetus, detecting at least one characteristic point on the head of the fetus; setting a central axis by using the at least one characteristic point, and displaying the central axis; measuring an angle between the body and head of the fetus with respect to the central axis; determining whether the angle falls within a normal range; and measuring a crown-rump length of the fetus, wherein the measuring of the CRL comprises: if the angle falls within the normal range, measuring the CRL of the fetus based on the result of modeling the fetus; if the angle does not fall within the normal range, estimating a model of the fetus corresponding to a case where the angle falls within the normal range, and measuring the CRL of the fetus, based on the estimated modeling result; and displaying the estimated modeling result and the measured CRL. if the angle falls within the normal range, measuring the CRL of the fetus based on the result of modeling the fetus; if the angle does not fall within the normal range, estimating a model of the fetus corresponding to a case where the angle falls within the normal range, and measuring the CRL of the fetus, based on the estimated modeling result; and displaying the estimated modeling result and the measured CRL.