A 150-day feeding trail was conducted in land-based fish ponds in the experimental base in Dongting Huang- long Company, Yueyang, Hunan to compare fish yield and economic efficiency in ponds mainly culturing grass carp fed with grass cultivar Guimu No. 1, dwarf elephant grass and ramie, respectively. The results showed that the growth rate(GR), specific growth rate (SGR) of grass carp feeding Guimu No. 1 were significantly higher than those of grass fish feeding dwarf elephant grass or ramie (P <0.05), and the GR, SGR of grass carp feeding ramie were significantly higher than these of grass fish feeding dwarf elephant grass (P <0.05). The GR, SGR of silver carp and black carp showed no significant difference in all test ponds (P >0.05), but GR, SGR of bighead carp in ponds fed with dwarf elephant grass were higher than those fed with the other two grasses (P <0.05). The survival of silver carp in pond fed with Guimu No. 1 was significantly higher than other ponds (P <0.05), but survival of grass carp, bighead carp and black carp showed no significant difference in all ponds (P >0.05). The pond fed with Guimu No. 1 had the highest fish yield and economic benefits, which were 934.25 g/m2, 26 967.75 yuan/hm2 respectively. The results above showed that grass carp pond fed with Guimu No. 1 had the highest economic benefits with fishes growing well.