The purpose of this research is to find the effects of the 'Study Stress Coping Training Program' on the reduction of study stress and the academic achievements in high school students. This program is mainly based on Won, Ho Taek's 'Study Stress Coping Training Program' and Kim, Young Jin's counseling method for study. This program is aimed at enhancing the student's abilities to understand and manage study stress. The content of this program covers 'understanding of the stress as a transactional model; the correction of irrational thought; time management', etc. The instruction of study skill can be a way of reducing the study stress. That's why we dealt with the study skill program such as PQRST reading skill, concentration and memory, taking notes and preparing for exams, etc. A total of 20 students from the 2nd grade of a girls' high school in Seoul joined this program voluntarily and they were assigned to one experimental group and one control group, 10 students in each group. Each group consists of the students having similar academic achievements. The experimental group had 20 hours' training for 5 weeks. On the contrary, the control group didn't get any treatment during those periods. To evaluate the effects of this program, ANCOVA was applied and the results of the evaluation are as follows: 1) After the training, there was significant reduction in the experimental group at the level of stressor (F(1,17)=0.03, p<.0l) and stress response (F(1,17)=8.53, p<.001). 2) Among the 6 subscales of stressor (Grade, Test, Lesson, Study, Course, and Outer Environment) there was significant reduction in Grade and Study. Among the three subscales of stress response (Physical, Psychological, and Behavioral Response), the scores of the experimental group were significantly decreased in Physical and Psychological Response. 3) This program was efficient for improving the grades of Korean History and English for the experimental group.