Traditional homegardens of Uttarkhand is a multipurpose and diverse farming system. It serves as a significant livelihood strategy for regulating household socioeconomic conditions. The present study aims to determine the floristic diversity, community structure, and species richness of Malta (Citrus sinensis) based traditional homegardens. The present study was conducted at two elevation ranges i.e. 1300-1500 masl and 1500-1700 masl in two blocks (Chamba and Jakhanidhar) of Tehri Garhwal district of Uttarakhand. Crop species inventory was prepared by homestead survey and random quadrat sampling method used for phytosociological and other parameters of trees. A total of 46 species were documented during the study, out of which 27 agriculture crops (58 %), 15 fruit crops (33%), and 3 multipurpose trees (6%).Citrus sinensis (density: 106-313 trees/ha; IVI: 128-216) was found to be the most dominating and important species of these homegardens in Garhwal Himalayas followed by Grewia optiva, Citrus limon, Mangifera indica, and Psidium guajava. The results of floristic diversity showed that the highest value of the Shannon and Weiner index (1.88), Simpson diversity index (0.76) and Margalef index (6.16) was recorded. The higher values of all diversity indexes (0.81, 0.47 and 2.24 respectively) were recorded in upper elevation. The value of Jaccard & Sorensen (Similarity) index among all study sites ranged from 23.07 to 27.77 and 33.33 to 42.47 respectively. Diversity and species richness of Malta-based traditional homegarden is high as compared to mono-cropping and provides food, fodder, fruits, and small timber to the farmers of the Tehri Garhwal region.