Abstract: Methods for monitoring the pathways of fluoride cycle in the mulberry ecosystem were introduced. The results of recently several years research on the fluoride pollution in the mulberry ecosystem were reported.The relationships between fluoride concentrations in the air and mulberry leaves, and between fluoride concentrations in the mulberry leeves and silkworm cocoon production were studied. The effects of fluorides on the growth, development of silkworn and the quality of cocoon silk, and the pathways of fluoride cycle in the mulberry ecosystem were descussed. The effective ways for prevention and management of fluoride emission were proposed.