A sense of community is the most important component of community. However, due to lack of adequate instruments, this element has usually been omitted by most community health workers when assessing community health status. The purpose of this study was to develop a scale of Community Health Sense, and to test the reliability and validity of it. The 44-item instrument was self-developed based on literature review and focus group discussion; then, it was sent out for 10 experts’ review to establish the content validity. A total of 34 items were pilot tested on 4 groups of subjects: two groups of convenient samples from one community health committee and one community promoting committee, the convenient community samples from Taipei city, and one random sampling group from Taipei county (n=62). Results of this study were first analyzed using the factor analysis. The total of 63.48% of variance was explained by the 4 factors developed. Four more items were deleted due to internal consistency reliabilities for four subscales: perception of community environment (α=0.78), accumulation of community affection (α=0.85), connection of community participation (α=0.90) and care about community health promotion (α=0.86) led to the deletion of 4 more items. Criterion-related validity was developed through known group comparison. Results of this study indicated that this instrument contains acceptable content, construct and criterion-related validity and internal consistency reliability. This scale can be utilized as a measurement tool in further study and practice.