At present, distance screen scout is widely used in practice and daily life .In order to satisfy people’s need to it, a distance screen scout system which adopts the advanced Java technology is studied and designed. This system has allsided functions and is compact and practical. It can get screen images, windows or course lists of the target computer,and can record and distill the distance keyboard events, open or close any directory of the target computer, realize the resource share and upload/download files, and capture the audio or videl signals, and so on. The system has a very good generalization and application value.