Abstract: The nutrients and biological yield of fresh leaves,stems and mixed silage of ramie were determined. The results showed that,the annual total yield of fresh stems and leaves from mu Zhu 0904 was 133.2 t/hm²,that of fresh stems and leaves from zhong Zhu 1 was 120.9 t/hm²,and the average harvest heights of mu Zhu 0904 and zhong Zhu 1 were 69.45~65.4 cm. The contents of crude protein,crude fat,acid washing fiber（ADF）,medium washing fiber（NDF）,crude ash,Ca and P in the first three crops of mu Zhu 0904 and zhong Zhu 1 were basically the same. Compared with 100% corn silage,50% ramie+50% corn silage had a higher crude protein and crude fat content, which was suitable for ruminant silage.

Key words: ramie（Boehmeria nivea L.）, silage, maize, biological yield, crude protein