InSAR (Interferometric synthetic aperture radar) techniques and applications are very useful for monitoring and mapping different types of deformations such as landslides, subsidence and volcanic activities on the Earth surface. In this research, we investigated Babadag landslide (Denizli in western Turkey) by using the InSAR techniques and compare our previous research from Karaman city, central Turkey. An active landslide in Babadag county has been issued in the study by using DInSAR to monitor the vertical deformation amount. According to initial results, the application of DInSAR has not have sensitive like PSInSAR in Karaman for the recognition of subsidence. In the further step, PSInSAR technique will be applied for the Babadag landslide.