With the aim to study the characteristics of Mechanically Induced Long-period Fiber Gratings (MLPFGs),the MLPFGs are fabricated based on the micro-curve principle.The grooved plates are made by the mechanical line processing technology and the MLPFGs are fabricated by pressing a plate with periodic grooves against a short length of fiber.Then,the relationship between MLPFG spectra and fabricated parameters,such as groove periods,period numbers,and pressures are studied.Finally,the influences of the temperature on the MLPFGs made from jacketed and unjacketed fibers are researched.Experimental results indicate that the produced MLPFGs have the insertion loss less than 0.5 dB and the loss peak as high as 16 dB.Moreover,a large tunability of the resonant wavelengths (>14 nm) has been achieved through adjusting the pressure grooves' period.The temperature sensitivities of the resonant loss peaks are 0.230 dB/℃ and 0.312 dB/℃,and the temperature sensitivities of the resonant wavelengths are 0.057 nm/℃ and 0.086 nm/℃ for jacketed and unjacketed fibers,respectively.These results show that this technique is able to control the grating isolation loss peaks and have a certain potential application value in the fiber sensing region for its characteristics by easy erasure and low costs.