A novel fabrication method for corrugated long-period fiber gratings (CLPFG) is presented in this study. The patterned SU-8 photoresist is used as a double-side stopper layer for a wet-etching process to fabricate the CLPFG. Presented in this research are four types of CLPFG with periods of 660, 670, 680, and and resonant wavelengths of 1531, 1539, 1550, and , respectively. The maximum resonance loss of the CLPFG with a period is . The CLPFG fabricated in this study is demonstrated for temperature sensing, and the results illustrate that the fabricated CLPFG with a period has a temperature sensitivity of , a wavelength-shifting linearity of , and a resolution.