A curvature and temperature sensor based on the fusion of an optical fiber Mach-Zehnder interferometer (MZI) and a Fabry-Pérot interferometer (FPI) is designed and fabricated. The structure of the sensor consists of a section of hollow-core fiber (HCF) cascaded at both ends with no-core fiber (NCF), which is fused single-mode fiber (SMF) at both ends as the optical input and output, respectively. The spectral response characteristics of the sensor to curvature and temperature are investigated experimentally, and the sensitivity of curvature and temperature response can be obtained by detecting the power change and wavelength drift of the interference spectrum. The maximum temperature sensitivity of 64.7 pm/℃ is obtained in the temperature range of 40 ℃~100 ℃. The maximum curvature sensitivity of 27.044 dBm/m^-1 is obtained in the curvature range of 0.39~0.68 m^-1. This sensor structure has the advantages of high sensitivity, good reproducibility, good stability, simple fabrication and low cost, which has the potential to be applied in the field of sensing.