This research is to investigate a structural model of an integrated information system for health promoting behaviors after radical prostectomy. The subjects of this paper were 142 patients who had visited a general hospital located in Metropolitan area. The pairwise t-test was done to compare the before and after application effect of health practice rate after radical prostatectomy. The results of this study are as follows. First, the response rate(29.6%) of experimental group was statistically significantly higher than the response rate(26.8%) in the 50 to 59 years old(χ²=10.27, p<.05). Second, for soybean intake, positive change of health behaviors behaviors diminished the progression rate of prostate cancer(31.24±0.35, t=-0.57, p=.000). Third, this paper found that the health promoting behaviors in prostate cancer patients was increased by 69.2-73.6% compared with the previous status. This study will contribute to reducing prostate cancer patients from prostatitis to prostate cancer in the future.