Abstract: In May 1988, using《The test colour-blindness atlas》made by YU Zhi Ping (the fourth edition of 1982, the ninth print), we investigated the frequency of colour-blindness from Xibe Nationality inhabitants in Shenyang suburbs, among which 789 are males, 630 are females, totally 1419. The age of the examined people is 7-60 years old. We found male colour-blind-ness ( weakness) in 40 persons, and the frequency of colour -blindness is 5.07 per cent; the female colour-blindness (weakness) in 2 persons, and the frequency of colour-blindness is 0.32 percent. The rate (M2/F) between the square frequency of male colour -blindness and the frequency of female colour-blindness is 0.80.

Key words: Xibe Nationality; Colour-blindness