Introduction: The aim of education to nursing student is to help them to acquire knowledge, skill and attitudes which they need to overcome on clinical decision making. The purpose of this study was to examine effects of decision making skill training on perception of clinical decision making.

Methods: The study was done with two groups pretest-posttest design. A randomly sample of 51 nursing students (5th semester) was obtained that divided into 2 groups as experimental and control group. The data were collected using a demographic questionnaire and and the Clinical Decision Making in Nursing Scale (CDMNS). Experimental group (n=24) was given the decision making skills training in an 8 session. CDM determined and compared in 3 times, pre interventional stage, immediately and 2 month after the intervention.

Results: The finding of this study by statistical test based on repeated measurement test, there is significant statistical difference in the mean grade of experimental group’s student's decision making skills, where in control group there isn’t any significant difference. Therefore, the group who obtained the decision making skills training demonstrated better perception of clinical decision-making.

Conclusion: The decision making training would be a structured training program for the nursing students in order to improve their clinical decision making.