The current study, with prisoners in Kaohsiung Second Prison, Agency of Corrections Ministry of Justice as the participants, aimed to examine the participation of civilization activities, imprisonment pressure, and life adaptability among prisoners in corrective institutions. to examine relationship among participation of civilization activities, imprisonment pressure, and life adaptability from prisoners of different demographic variables. A stratified sampling was employed. Data analysis included Independent Samples t-Test, One-way ANOVA, and Pearson product-moment correlation coefficient. The results were as follows: 1. Significant differences in participation of civilization activities were found in the recreational aspect of prisoners with different ages、education background and imprisonment length. Also Significant differences were found in the sport activities aspect of prisoners with different crime types、before imprisonment's occupation. 2. Significant differences in imprisonment pressure were found in Bullying victims of prisoners with different marital statuses and crime types. The others were not found. 3. In terms of imprisonment life adaptability, Significant differences were found in prisoners with different ages、education background、before imprisonment's occupation、imprisonment experiences and crime types with regard to daily life civilization. Significant differences in after discharge were found in prisoners with different marital statuses、imprisonment experiences and imprisonment length. With regard to communication channels, significant differences were found in prisoners with different education background and crime types. 4. Correlations were found among participation of civilization activities, imprisonment pressure, and imprisoned life adaptability, suggesting that civilization activities relieved prisoners' imprisonment pressure and life adaptability.