The purpose of this study is to estimate efficiency of horticultural greenhouse by using Data Envelopment Analysis. A proposed method employs a bootstrapping approach to generating efficiency estimates through Monte Carlo simulation resampling process. The technical efficiency, pure technical efficiency, and scale efficiency measure of horticultural greenhouse by geothermal heating system is 0.967, 0.975, 0.991 respectively. However those of bias-corrected estimates are 0.866, 0.918, 0.943. We know that the DEA estimator is an upward biased estimator. In technical efficiency, average lower and upper confidence bounds of 0.726 and 0.8747. According to these results, the DEA bootstrapping model used here provides bias-corrected and confidence intervals for the point estimates, it is more preferable.