The present invention relates to a monitoring and analyzing system for the animal behavior which consists of an experiment device and a computer analysis software system. The experiment device is combined with a video frequency signal collection device based on an infrared and optical, mechanical and electronic integration technology, an LED array analysis technology and a numeral photography technology. The computer analysis software system has the function of processing real-time / off-line analysis towards collected animal action signals, which can not only provide a data base and various data ports to track and record input real-time monitoring signals but also has the function of processing a series of testing data towards each testing item, so as to take out the animal behavior track and characteristic from the data and figure out a plurality of ethological parameters, which is convenient for the record and the storage of the monitoring data and the subsequent data analysis to ensure the strong repeatability and the high reliability of the testing data, therefore, the present invention has very strong maneuverability and practicability.