Quartz supermirror polarizing microbender for cold, thermal and hot neutrons has been proposed on the basis of polarizing supermirror on a quartz substrate which is transparent for neutrons and light. Its properties are discussed. The main advantages of the device on quartz (SiO₂) substrate compared with the silicon (Si) one are (i) smaller neutron absorption (about 2 times), (ii) better technological merits and plasticity, (iii) transparency for light (so it is possible to adjust the device with the use of a laser). The thickness of the quartz substrate (channel width) can be about 0.05mm which leads to a substantial miniaturization of the device and good transparency for neutrons. The transmission and polarizing efficiency of the microbender in a wide wavelength band are calculated supposing Fe/Ge supermirror on quartz with Gd absorbing layer.