This study is focused on the efficiency of students' learning for the skill tests in practical course. Experimental investigations of surveying were executed for students in four-year technical college of 91 and 92 academic year. The evaluation data of pre-learning and post-learning, and questionnaire are analyzed and compared. According to the research analysis, the experimental group demonstrates remarkable superiority over the control group in cognitive and psychomotor, and the experimental variable also is better than the control variable in rightness. In a word, this paper suggests that skill tests in practical course can be employed in teaching.