A health monitoring apparatus for determining whether or not a diaper wearer has excreted based on spectrum information detected from an acoustic signal generated from the diaper, and monitoring the diaper wearers physical condition according to the characteristics of the body wastes through color pattern-based image processing, and a health monitoring method using the same are provided. The health monitoring method of a health monitoring apparatus includes: receiving an acoustic signal from a sensing device attached to a diaper determining whether any body wastes have been discharged based on a spectrum extracted from the acoustic signal when it is determined that body wastes have been discharged, obtaining an image of the diaper by using a camera obtaining characteristic information of the body wastes based on a color pattern extracted from the obtained image and transmitting information regarding the diaper wearers physical condition to an external terminal based on the characteristic information.
