The invention relates to a Beidou wide-area migration target autonomous internet of things and stereoscopic monitoring integrated device, which comprises a sensing information acquisition module, a control module, a Beidou module, and a power supply and working state indication module, wherein the sensing information acquisition module acquires the heart rate of a research object and parameters of the environment where the research object is; a Beidou first-generation module carries out timing and quantitative transmission on storage data through a short message communication function; and a Beidou second-generation module positions the research object and controls an information acquisition function, a communication function and a power on-off condition of the entire device. A method with simplified parameters and dynamic Huffman encoding compression algorithm is adopted for processing the acquired data, lossless data compressing encoding can be realized, the memory reading and writing times are reduced greatly, the response speed is improved, and as for a nonuniform frequency phenomenon of a character in the overall string, great compressing effects can be achieved.