The purposes of this study were to construct exercises for developing Mathayomsuksa two students creative writing ability, including finding the efficiency of the exercises to meet the standard criterion of 80/80 and to compare students creative writing ability before and after the implementation of the exercises.
	The samples in this study were forty five Mathayomsuksa two students studying in the first semester of 2011 at Nongjokpittayanussorn mathayom School. The instruments used in the experiment were : 1) fifteen creative writing exercises
 2) lesson plans and 3) three creative writing achievement tests, administered before and after using the exercises. The study had been carried out for 7 week, three periods a week. The statistical devices employed for the data analysis were mean, percentage, standard deviation and t-test dependent.
	The findings of the study were as follows:
 	1. The efficiency of the creative writing exercises was found to be 86.30/84.19 which was higher than the level of setting standard criterion.
 	2. Students creative writing ability after the experiment was statistically significant
higher than before the experiment at .05
