Abstract: In refrigeration experiments, a lot of dimensionless parameters are the important token of experimental status, but those data are not measured by instruments. In this paper, the Dimensionless parameters Real Time processing system (DLRT) for refrigeration experiments has been developed. Using this system, the experimenters can detect and control their interested dimensionless parameters in the first time so as to enhance the efficiency of experiments. The DLRT includes hardware and software. The hardware has fast sampling speed and high resolution. The high-speed microcomputer is used for the teledetection and telecontrol on the data acquisition main frame. The software has several run modes with the characteristics of friendly interface, good maneuverability and adaptability for different demand in refrigeration experiments.