The purpose of this research was to study the happiness and depression among disabled people in RICD Wheelchair Project. The subjects consisted of 1,045 disabled people in RICD Wheelchair Project. The research instrument was a set of questionnaires divided into three parts. The first part was the demographic data; the second part was Thai Happiness Indicator (THI) and the third part was the Screening Test for Depression. The data was analyzed by percentage, mean, standard deviation, Kolmogorov-Smirnov and Chi -square test. The results of this study were as follows : The 52.0 percentage of disabled people was more happy than normal people, 25.7 percentage of disabled people was happy equal normal people and 22.3 percentage of disabled people was less happy than normal people. The 85.1 percentage of disabled people was nor mal and 85. 1 percentage of disabled people probably had major depression

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