The purposes of this study were 1) to study information perception attitude and behavior of undergraduate students for participation in 3D-based activities at Rajamangala University of Technology Phra Nakhon; 2) to compare personal factor and participatory behavior in 3D-based activities; and 3) to study how information perception and attitude correlate with participatory behavior in 3D-based activities which include Decency Democracy and Drug-free. Data were collected from 400 RMUTP undergraduate students from all nine faculties in 2010. Results of the study indicated that RMUTP students perceived news releases on 3D policy at average level. Similarly their overall attitude towards 3D policy campaign was also rated in average level. Hypothesis testing results showed that firstly students with different gender and faculty of showed significant different participatory behavior in 3D-based activities at the level of .05. Secondly the perception of 3D policy new releases had positive correlation with participatory behavior in 3D- based activities. Thirdly attitude towards 3D policy of the university had positive correlation with participatory behavior in 3D-based activities.

This research aimed to investigate perception attitude and behavior ofRajamangala University of Technology Phra Nakhon undergraduate students on 3Dpolicy - based activity Participation and the relations among perception attitude and behavior. 3D aspects include Decency Democracy and Drug-free. The data werecollected through 400 RMUTP undergraduate students from nine faculties in 2010.Data analysis employed frequency percentage mean ( ) standard deviation (s.d.).Statistics used for hypothesis testing included t-Test; to compare between two variables F-Test and One-way ANOVA; to compare more than two variables and Pearson Product Moment Correlation Coefficient. The results of study found that RMUTP students perceived news releases on 3 D policy of the university at the average level. In the meantime their overall attitude towards 3D policy campaign was rated in average level. The attitude towards Decency was at high level and Democracy and Drug-free were considered average. The student participation in 3D –based activities was rated at high level when considered by individual and overall aspect. Hypothesis testing resulted as follows: 1. Students with different gender had different perception of 3D policy with a statistical significance at .05. However there were no significant differences at .05 among students from different faculty. 2. Students with different gender and faculty had different attitude towards 3D policy with a statistical significance at .05 3. The participation behavior on 3D-based activities of students with different gender and faculty was different. 4. The perception of 3D policy new releases had a positive correlation with 3D- based activities participation behavior. 5. Attitude towards 3D policy of the university had a positive correlation with 3D- based activities participation behavior.