This study aims to examine the analysis of horticultural diversification in Koto Tinggi Village, West Sumatera, Indonesia. The first objective of the study is to analyze the factors influencing farmer for choosing their cropping pattern. We analyze it by qualitative analysis and the result is economic factors as the main driver for farmer choosing their cropping pattern. The second objective of study is to analyze factors contributing to diversification. The probit regression shows that gender, age and experience are significant factors contributing to diversification. Finally, for the third objective of the study shows that there is no significant difference between monocropping and diversification in terms of their farm revenue.