The purpose of this study is to offer the basic data for managing the ecosystem of National Park by surveying and analysing the flora distributed around tombs in Namsan District, Gyeongju National Park. The number of flora were summarized as 184 taxa including 62 families, 137 genera, 153 species, 2 subspecies, 26 varieties and 3 forms. The planting species were 3 taxa including Chamaecyparis obtusa, Juniperus chinensis var. globosa and Thuja occidentalis. The rare plant was Potentilla discolor. The Korean endemic plants were 4 taxa including Populus tomentiglandulosa, Indigofera koreana, Lespedeza maritima and Weigela subsessilis. The specific plants by floristic region were 4 taxa including Chloranthus japonicus, Wisteria floribunda, Euonymus japonicus and Carpesium macrocephalum. The naturalized plants were 9 taxa including Phytolacca americana, Silene armeria, Robinia pseudoacacia, Bidens pilosa and so forth. The whole NI and UI were 4.9% and 2.8%.