The study was conducted in Chickaballapura district of Karnataka, during the year 2015-16 to find out the association between personal and socio-psychological characteristics of farmers with performance of different farming systems adopted by farmers. In Chickaballapura district, two taluks i.e. Sidlaghatta and Chintamanitaluks were purposefully selected for the study, since these taluks are having more diversified farming compared to other taluks. From each taluk, five villages have been selected. From each village, 12 farmers are selected, which include three farmers under FS-1, three farmers under FS-2, three farmers under FS-3 and three farmers under FS-4. Thus, the total sample size from two taluks and 10 villages is 120. It was found that, the association between personal and socio-psychological characteristics with performance of FS-1 farmer, the variables achievement motivation, risk bearing ability and mass media participation had positive and significant association with performance at five per cent level of significance. With FS-2 farmers, the extension participation had positive and significant association with performance at one per cent level of significance. It was found that with FS-3 farmers, risk bearing ability and decision making ability had positive and significant association with performance at one per cent level of significance. With FS-4 farmers, education, farming experience, land holding, cropping intensity, management orientation, risk bearing ability, irrigation intensity, decision making ability, mass media participation and extension participation had positive and significant association with performance at five per cent level of significance. Majority of Ragi farmers perceived uneven rainfall (95.00 %), non-availability of labour (86.66 %), lack of knowledge (80.00 %), high cost of fertilizers (75.00 %) are the major constraints. A good number of dairy farmer's perceived shortage of green fodder and lack of pucca house (92.22 %), high investment (82.22 %) as their major constraints. A great majority of sericulture farmers expressed that lack of knowledge about spacing (86.66 %), lack of irrigation facility (83.33 %) as the major constraints. Horticulture farmers expressed that lack of water for irrigation (93.33 %), interrupted power supply and price fluctuation, high cost of hybrids (90.00 %), as the major constraints.