Purpose: The purpose of this study were to find out effects of situated learning to problem solving of nursing students. Method: Subjects were 210 nursing students and analyzed by frequency, mean and t-test. Results: Experimental group who experienced situated learning was significantly higher problem solving than control group who didn't experience that. Conclusion: This study found that situated learning in nursing students was effective educational method to develop problem solving. So it is needed to develop various educational methods to improve problem solving according to curriculum.