Abstract: Aiming at the problems of the unchangeable beam angle and the low light utilization efficiency of the domestic high-power LED array stage lighting, a zoom lens system with array source was designed. Firstly, a zoom lens group with single LED source was designed with 18.5~38.7beam angle (1/10 peak angle ) when the focal range was 0mm~10 mm, and the light utilization efficiency was more than 78% when focal length was 10 mm. Secondly, the zoom lens group with single LED source was extended to a zoom lens system with 36 LED sources (12 red LEDs, 12 green and 12 blue), the beam angle and the color blending effect were analyzed at different arrangements of LED array. The results show that with the same focal range as the single LED, the beam angle range (1/10 peak angle) is 21~38.6, and the more uniform the arrangement of different color LED is, the better the color blending effect is. Compared with the existing domestic highpower LED stage lighting, this new zoom lens system has improvements in both beam angle and light efficiency.