Plan arrangement is an important part for radar to acquire space target's observation data, and to provide a reasonable observation plan for radar equipment. This paper introduces a plan arrangement system which used in the space target's data acquisition. Tncluding the orbit elements of the space target, using SGP4 model to calculate a variety of observation characteristics of the target, including the shortcut elevation, viewing angles and subsatellite point, consider with the equipment to make a reasonable observation plan,accomplish the function of scheduling. Eventually，the space target orbit calculation algorithm and data analysis on the VS2010 compile environment is realized, and observation task scheduling, result display and data storage is also achieved.