Hollow-core Bragg fiber is a kind of photonic bandgap fiber which has a cladding of one dimensional photonic crystal (1DPC) and an air core. Aiming at its application on CO2 laser transmission, a hollow-core Bragg fiber sample with a transmission band of 10.6 μm is designed and fabricated. Its transmission spectrum is measured by Fourier transform infrared spectrometer (FTIR), showing an obvious low loss transmission peak at 10.6 μm. Measured by cutback method using a CO2 laser, the transmission loss at 10.6 μm of the fiber sample is 2.35 dB/m. The additional loss induced by fiber bending is also measured under different fiber curvatures, showing that it rises with increasing curvature. Experiments show that a fiber bending of 90° with a bending radius of 10 cm near the fiber output end leads to an additional loss about 2 dB. The experiment results demonstrate the low loss transmission of CO2 laser by the hollow-core Bragg fiber sample, showing its great potential on improving the flexibility of CO2 lasers.