The purposes of this study was to determine the relation of activity involvement and place attachment between Bicycle activity. After using a literature review to establish the empirical models and hypotheses, the study employs the empirical methodology to conduct the questionnaire investigation. Total empirical are 500 bikers who rides on Baguashan Cycleway. The study conducted convenience samping process to collect data. Questionnaire survey was used as research instrutment of this study. There were effective questionnaires were completed. The response rate was 97.4%.The researcher used descriptive statistics , One-way ANOVA, Pearson Correlation , Factor analysis, reliability analysis and structural equation modeling to analysis the data. This study found : (1) That there was almost males. The primary visitors were 21-30 years old, single, college or university level of education, students, and living in Changhua. (2) Gender and present inhabited area were affect the activity involvement. (3) The three dimensional of activity involvement and activity involvement are positive correlation (4) The two dimensional of place attachment and place attachment are positive correlation (5) The relation between activity involvement and place attachment are positive correlation