National Horticulture Mission is a centrally sponsored scheme, the Karnataka state has implemented thedevelopmental activities under the mission in the 30 districts, covering 16 important horticultural crops since from 2005-06to till. With this background the present study was undertaken to analyze performance of National Horticulture Mission(NHM) scheme and its impact on horticulture development in Karnataka. The study is completely based on secondary datasource. The analytical techniques like CAGR, CV, Instability index, Principle Component Analysis technique and averageswere employed. The overall financial growth of the state was observed to be positive of 6.06 per cent per annum. Co-efficientof Variation (CV) in financial progress during the same period was observed to be higher in all the districts under NHMscheme. In short, it was showed that Karnataka was one of the important states in performing NHM components of NHMwhich are having highest contribution to Indian total. The similar situation was observed in case financial achievements. Since,area coverage, creation of water resources, protected cultivation, horticulture mechanization, post-harvest management andrejuvenation, vermi-composting units/bio-digester unit were the most important components which influencing the performanceof NHM in the study area. It was important to note that there was lot of scope to improve the performance of component likearea coverage and rejuvenation under NHM programme, so these need to be taken intense care. Based on the analysis it wasobserved that the instability in area, production and productivity of horticulture crops was reduced after implementation ofNHM in the study area which showed positive impact of NHM but growth was slightly reduced but significantly positiveduring the same period when compared to pre-NHM period.