Abstract： Objective To investigate characteristics and differences of perceptibilities of different professional staffs in a combat unit to further construct a perceptibility model and its appraise model in personnel of a unit and to determine their standards. Methods The contents of perceptibility test were composed of a attention test, a hearing number memory span test, a finger dexterity test, a vision reaction time test, a auditory reaction time test, and a fluency of thinking test. Three hundred and fourteen soldiers were selected as subjects who were from four different professions such as sapper, infantry, tankman and scout. Results Six items about perceptibility provided a clear distinction. There were significant correlations between memory and attention (P<0.01), between attention and number decoding (P<0.05), as well as between vision reaction time andauditory reaction time (P<0.05). There were statistically different among staffs in different professional fields. Several items in soldiers of different age, headship and educational background showed significant differences. Conclusions The two items of vision reaction time test and auditory reaction time test can be choosed alternative, and anyone of the other tests can be used to test soldier's perceptibilities. Results of tests can provide an effective perceptibility appraisal for a soldier.