Abstract: Based on the migrating feature of salmon and testing on the traas-plantation of the species to Suifen River, smolt releasing and adults returning of pink salnaan have been made. In October 1987，930000 eyed eggs were imported from Sakhalin Russia. After artificial incubation and rearing,790000 smalt(38mm in length, 0.378 in weight) were released into the Su.ifen River. Among the relea-sed smolt, 3UOD individuals were marked by fin-clip. From .Tune to August,1989,647 returning fish (457mm in length, 1220g in weight)were captured-recaptured.The returning population was 10 times much higher than before. The returning rate of the released fish was 0.087% and the returning rate of the marked fish was 0.023%(uncounted the lower section inside of Russia). As the test achieved remar-kable success,the releasing amount should be further increased and the cooperation of Sino-Russia on the enhancement of the salmon resources should be streng-thened.