Abstract: In Guanshan forests,Gansu Province,the koklas pheasant (Pucrasia macrolopha) inhabits in places with an elevation of 1600-2000 m.Its propagation period starting from mid or late April lasts till early June each year.lts bowl-shaped nest is made on ground.The outer diameter of the nest is 250×270 mm and inner diameter 210×230 mm.The depth is 52 mm.Most of them are distributed mainly on sunny hillside.One nestful has usually 6-9 eggs.On the average,the size of each egg is 34.2×47.2 mm and weight 36.2 g,light brown in colour,the eggs bear lots of maroon spots.Analysis of its contains in crops proves that it is omnivorious,but the main food is plants.lts natural enemies include hawk,buzzard,snake,fox,wild cat and weasel etc.Experiment of incubation showed that 88.89% of the eggs can be hatched.By artificial domestication,we observed and studied the development of young birds.