1981~1999
- 1999
- 03.02 3 classes, 69 students were admitted.
- 03.01 4th principal, Kim Jong-ho was inaugurated.
- 02.10 14th Graduation and Early Completion Graduation Ceremony (Regular graduates 25, Early graduates 46)
- 1998
- 02.10 13th Graduation and Early Completion Graduation Ceremony (Regular graduates 52, Early graduates 42)
- 1997
- 02.10 12nd Graduation and Early Completion Graduation Ceremony (Regular graduates 43, Early graduates 38)
- 1996
- 02.09 11st Graduation and Early Completion Graduation Ceremony (Regular graduates 47, Early graduates 47)
- 1995
- 02.10 10th Graduation and Early Completion Graduation Ceremony (Regular graduates 40, Early graduates 41)
- 1994
- 03.02 3rd princincipal , Lee Suk-keun was inaugurated.
- 02.05 9th Graduation and Early Completion Graduation Ceremony (Regular graduates 9, Early graduates 46)
- 1993
- 06.09 President Kim visited
- 02.10 8th Graduation and Early Completion Graduation Ceremony (Regular graduates 4, Early graduates 49)
- 1992
- 03.02 3 classes, 90 student were admitted.
- 02.08 7th Graduation and Early Completion Graduation Ceremony (Regular graduates 10, Early graduates 53)
- 1991
- 02.09 6th Graduation and Early Completion Graduation Ceremony (Regular graduates 3, Early graduates 49)
- 1990
- 02.10 5th Graduation and Early Completion Graduation Ceremony (Regular graduates 6, Early graduates 79)
- 1989
- 03.02 2 classes, 60 students were admitted
- 02.10 4th Graduation and Early Completion Graduation Ceremony (Regular graduates 1, Early graduates 79)
- 1988
- 10.28 Science Research Hall was constructed.
- 09.01 2nd principal, Kang Ki-sung was inaugurated.
- 03.02 3 classes(90 admittees), Co-ed system started.
- 02.12 3rd Graduation and Early Completion Graduation Ceremony (Regular graduates 15, Early graduates 55)
- 1987
- 02.17 2nd Graduation and Early Completion Graduation Ceremony (Regular graduates 45, Early graduates 44)
- 02.03 Designated as special purpose high school
- 1986
- 02.17 1st Graduation and Early Completion Graduation Ceremony (Regular graduates 54, Early graduates 4)
- 1984
- 02.10 President Chun visited.
- 1983
- 06.30 The main building and the dormitory were constructed.
- 03.05 First Entrance Ceremony( 2 classes, 60 students, Males from Gyeonggi Province)
- 03.05 Hong Chang-gi was appointed as the first principal
- 01.10 The foundation of the school was approved
- 1982
- 11.23 Students were selected.
- 05.15 The construction of the school started.
- 04.19 The Ministry of Education of Korea authorized the plan of setting up Gyeonggi Science High School.
- 02.23 Task force team was organized for the foundation of science high school.
- 01.19 Education Board of Gyeonggi Province asked the Ministry of Education of Korea for (permission to found) a science high school.
- 1981
- 11.19 Education Board of Gyeonggi Province set up the plan for the foundation of a science high school.
