Considering the cross sensitivity of strain and temperature in fiber Bragg grating measurement, two types of sensors based on fiber Bragg grating strain and temperature were developed. After removing wavelength drift caused by temperature, the individual changes in fiber Bragg grating strain can be obtained, which solves the problems of complex design structure and inability to compensate for temperature in traditional fiber Bragg grating sensors. The strain sensing capability and temperature sensing characteristics of the sensor were investigated through stress tensile testing and water bath testing. The experimental results show that the sensitivity coefficient of the fiber Bragg grating strain sensor is 0.95 pm/με, with a deviation of only 2.05% from the theoretical strain sensitivity coefficient; In the range of 20~60 ℃, the sensitivity of the temperature sensor reaches around 20pm/℃, which is 2.2 times higher than that of unpackaged bare fiber Bragg gratings. Compared with the sensitivity coefficient before temperature compensation, the coefficient after compensation is significantly improved, effectively achieving the goal of temperature compensation and providing a more reliable basis for strain monitoring in the field of civil engineering.