This research aimed to explore knowledge, attitude and practice on solid waste management in Joho Sub-district Administrative Organization, Mueang District, Nakhon Ratchasima, Thailand. The collection data using questionnaire from 54 family samples. Analyses of research data employed descriptive statistics and Chi-square. The research was conducted during October - December 2014. The results showed that the samples knowledge level were on moderate level (¯x= 14.33, SD = 2.65), the attitudes were high level (¯x= 2.44, SD = 0.28) and practices (¯x= 2.40, SD = 0.29) were on high level. The relationship between attitude and practice was significantly statistically (p<.05). Therefore, the local government should promote knowledge on effective solid waste management, in order to avoid environmental consequences in the future.