 Shamshuipo District consists of 5.3 of the population in Hong Kong; and ranks the fourth most densely populated district in 2010 Social Welfare, 2011. The proportion of single parents, elderly, newly immigrated mainland persons, ethnic minorities, comprehensive social security assistance recipients in this district are relatively high; whereas the median of monthly domestic household income is the lowest among all districts in Hong Kong Census and Statistics Department, 2011. It is essential to provide substantial support for families with low income and under privileged condition. Apart from this, encouraging positive thinking among family members may be an effective way to enhance family well-being in this district Linley et al., 2011. A considerable amount of evidence has demonstrated benefits of applying positive psychology principles on family well-being. Previous studies including the nun study Danner et al., 2001 and Harvard study Peterson et al., 1988 suggested that people who are happy tend to be healthier and live longer. 