The data were collected in the seasonal crop year 2006/07 from respective selected farmers by means of an interview schedule. The questions covered the personal background of the respondents and their perceptions in terms of knowledge, practices and attitudes on durian innovation. The interview schedule was tested with 30 durian growers in Klung district, Chanthaburi province. Testing of the reliability of knowledge and practices on durian innovation used the Kuder-Richardson reliability coefficient (KR-21) with the reliability value being 0.72 (Kuder & Richardson, 1937). The semantic differential scaling methods of attitude towards requirement to practice durian innovation and affordability of durian innovation were obtained by internal consistency using Cronbach’s alpha with values of 0.89 and 0.84 (Cronbach, 1951).