Today, phototherapy devices are used to treat newborn jaundice. However, there are some cases that the commercial phototherapy devices are inadequate. Most of the device are controlled only at the certain interval that prevents instantaneous monitoring the newborn's vital parameters. For other cases, devices are one-way lighting. In addition, when the baby is taken away from the device, unnecessary lighting causes the decrease in LED's lifetime. In the scope of the study, intensive phototherapy device was developed to eliminate deficiencies that are mentioned above. Properties of the developed phototherapy device are; Automatic detection of newborn's presence, double-sided illumination, continuous monitoring with IP webcam, temperature measurement of the environment and also newborn's body temperature. The light intensity of the device was measured with a photometer as 28.6 mu W/cm(2)/nm that was obtained from 460nm wavelength LED illumination in both top and bottom in accordance with the American Academy of Pediatrics (AAP) guideline.