Mass loss process in the final evolutional stage of low mass stars is quite important to understand not only the cycle of matters in the Universe but also the way how they evolve.Classically it is believed to expand isotopically and form spherical symmetric shells.However, bipolar planetary nebulae cannot be explained by the classical isotropic mass loss. Recently it is expected that the existence of equatorial disks or tori plays important role in the formation of bipolar planetary nebulae. To investigate the equatorial disk or torus in detail, longer mid-infrared observations with sufficient spatial resolution are absolutely essential. We have carried out mid-infrared imaging and photometric observations of three bipolar Planetary Nebulae, NGC6302, Mz3, Hb5. These are very famous and bright planetary nebulae at the mid-infrared wavelengths. We developed a new mid-infrared camera MAX38 and used for this study.It was attached on the miniTAO 1.0 meter telescope at the summit of Co.Chajnantor, which is the highest astronomical site in the world. Thanks to high altitude of 5,640m and dry weather condition, we can access the 30 micron wavelength range from the ground. In this talk, I will briefly report our challenging on 30 micron observation from the ground and our results.