The present invention relates to an apparatus for capturing an image of the anterior part of an iris, and a medical monitoring system using a smart phone. According to the apparatus for capturing an image of the anterior part of an iris, the present invention can contribute to the health of the eyes by accurately examining or capturing images of healthy states to diseased states of an iris by precisely capturing an image without reflecting light to the iris while easily opening the eyes through a more effective and simple method, and proceeding with follow-up treatment thereto.