Abstract: A travelling wave thermoacoustic refrigerator,which is a pulse tube refrigerator driven by a travelling wave thermoacoustic prime engine,has no moving parts.An experimental apparatus of a travelling wave thermoacoustic refrigerator has been set up.The helium,nitrogen and their mixtures are chosen for the experiments.The refrigeration performance of the thermoacousic prime engine driven pulse tube has been tested and the largest temperature decline of 73.8℃ was obtained. The experiments focused on the temperatue of the gas in the hot end heat exchanger,pressure amplitude and the temperature decline of the cold end of the pulse tube.