In this paper, dynamics of structure of Arthropod groups in Kudzu Pueraria lobata was analyzed based on parameters of richness [the number of species (S), richness of species (R)], diversity [Shannon-Wiener index (H'), Brillouin index (H), Simposon index (D), and Mclntosh index (DMc)], evenness (J'), dominance [dominance degree (d) and dominance concentration degree (C)J. Two peaks of the richness and diversity occurred in a year, one in late May and the second in November. During the period of first peak, indexes of 5, R, D, H', H and DMc were 38.00, 6.020 5, 0.905 6,4.020 5, 3.856 0 and 0.720 7, respectively. In the second peak period, the values above parameters were 34.00, 6.666 1, 0.924 5,4.212 4, 3.677 9 and 0.780 8 respectively. The index J' fluctuated significantly from January to April, with maximum (0.889 9) in middle January and minimum (0.576 5) in late February. The same trend of d comparing with C was found and its peak occurred in late February to early March. It showed that there was an opposite trend between diversity and dominance and that a consanguineous relation between evenness and stability was found.