We have developed a distributed strain sensing system based on optical frequency domain reflectometry (OFDR) using long-length fiber Bragg gratings (FBGs), which can measure strain distribution profiles along the FBGs with the high accuracy and the high spatial resolution. If an FBG is inscribed into a polarization-maintaining and absorption-reducing (PANDA) fiber, simultaneous strain and temperature measurement can be performed. In this paper, we applied the simultaneous measurement method to the distributed sensing system based on OFDR. We built the OFDR sensing system with the FBG inscribed in the PANDA fiber and bonded the FBG sensor part to a stainless plate. We applied bending loads as well as temperature variations in an environmental chamber. We demonstrated the capability of the simultaneous distributed strain and temperature measurement.