Abstract: The Southern area of China especially Guandong Province has been troubled in Water hyacinth growing for many years, how to make full use of the materials reasonably is very important in Water hyacinth issue. In this paper we used the dry Water hyacinth as raw materials to grow the Straw mushroom and the Oyster mushroom. The results showed that the mushroom grew well on the treatment with 48% and 35.59% Water hyacinth, the biological efficiency was 14.4% of straw mushroom and the Oyster mushroom with 76.3%. And the fruit body Heavy metal （As、Pb、Hg）contents are conform to the national standard, the water hyacinth can be used as a raw material for mushroom cultivation.