Abstract: This paperis a review on the resultsof the investigation of biological resource from inland saline waters in North China during 1981- 2001. At some 50 localities with salinity of 0. 8- 286.0,alkalinity of 1. 75- 67.00 mmol/L,pHvaluesof 7. 3- 10. 6,ionic co-efficient of 0. 45- 67.00, there were 132 species phytoplankton, 193 species of zooplank-ton, 31 species of zoobenthods and 37 species of fishes. According to the rate of occurrence and the average biomass, 33 species of phytoplankton, 34 species of zooplankton and 6 species of zoobenthods were the important speciesin the inland saline watersin North China. Adaptability of plankton to the salinity, alkalinity and pHvalue, fishery exploitation of bio-logical resourcesin inland saline waters and use of halophilesor salt tolerant freshwater clado-cera as live food for marine fish larvae were discussed.