Objective     To identify the mental health status of a panzer troop and its related factors in order to alleviate the psychological pressure in soldiers.  Methods       Symptom check list 90 (SCL-90)

Athens insomnia scale (AIS)

multidimensional fatigue inventory-20 (MFI-20)

and psychological stress self-evaluation test (PSET) were tested in a panzer troop

and 394 valid questionnaires were collected. SPSS 16.0 statistical software was employed to analyze the data by using the statistical methods of descriptive analysis

t-test

correlation analysis.  Results       Ninetyone individuals with mental disabilities (23.1% of the total) were screened in this survey. Among them

49 individuals had moderate or seriously psychological problems (12.4% of the total). Compared with the national youth norm

soldiers in the panzer troop had higher scores of somatization （1.56±0.58） and psychosis（1.43±0.56

P0.05）. The mental health of participants was correlated with military’s stress status

sleep state and fatigue index

especially the relation to the stress and sleep conditions were statistically significant. Conclusion            The state of stress and sleep seriously affects panzer troops’ mental health. Mental health education

psychological training and guidance should be carried out in the panzer troops to improve the soldiers’ psychological condition

adaptability and combat effectiveness.