Abstract: In this paper, the microencapsulation of fish oil was made by the method of spray drying technique, and the quality of microencapsulation was evaluated.The result showed that the best support materials proportion of arabic gum:maltodextrin:cornsyrup was 3∶3∶4, the addition of fish oil was 30% of support materials, the emulsification temperature was 50～60℃, the amount of emulsifier was 0.8%, the temperature of entering wind spray drying was 200℃.This technological process could get high quality microencapsulation products.\;