Objective To probe into the situation of insomnia in students from ordinary higher education institutions and related factors.Method 119students from insomnia group and 119normal students from control group were tested using Eysenck Personality Questionnaire（EPQ）

Life Event Scale（LSE）

Zung′s Self-rating Anxiety Scale（SAS）and Self-rating Depression Scale（SDS）.Results There were 119cases suffering from any one of the following symptoms

namely difficulty falling asleep

early awakening and difficulty getting back to sleep

which accounted for 19.4% of the total students surveyed.Score on neuroticism（N）in EPQ of students from insomnia group was（13.59±4.47）while that of students from control group was（10.13±8.32）.The score on introversion-extroversion（E）of insomnia group was（8.27±3.68）while that of control group was（11.34±4.15）.45cases in the insomia group showed the symptom of anxiety

accounting for 37.82% while 19cases in the control group

accounting for 15.97%.54cases in the insomia group indicated depression

accounting for 45.38% while 27cases in the control group

accounting for 22.69%.81cases from the insomia group suffered from stressful life events in the past one year

accounting 68.07%

with 57cases in the control group accounting for 47.09%

and differences between the two groups were statistically significant（p<0.01）.Conclusion A part of students from ordinary higher education institutions suffer from different levels of insomnia

which is closely related to their personality

life events and emotional disorder.It is recommended that psychological counseling and guidance for personality traits shall be strengthened and conductions and behaviors be adjusted so as to improve sleep quality.