Abstract: traditional jamming of artillery locating radar is based on large jamming equipment of vehicle and airborne, which is limited by terrain conditions and has low operational efficiency. In this paper, the area configuration of small electronic warfare unmanned aerial vehicle (EW UAV) jamming artillery locating radar is studied. Firstly, the spatial position relationship of radar, UAV, protected artillery position and shell is analyzed, the transformation relationship between each spatial position angle is precisely deduced, and the jamming model is established. Then, the search method of UAV configuration area boundary is given, and the initial value assignment method is proposed to improve the solving speed and accuracy. Finally, the correctness and effectiveness of the proposed model and solution method are verified by simulation. The research has reference and guiding significance for the practical operation of small EW UAV.