To project arthropod community response to climate change in wheat fields, a field survey of arthropods over the growing season was made in the plots under a factorial combination of two CO_2 (ambient and 500 muL/L) and two temperature (ambient and +2℃) treatments. The survey collected 52 species, 42 families, 10 orders, and 3 classes. Analyses of overall arthropod community showed a significant increase in evenness due to Elevated CO_2 + Increased temperature treatment. Elevated CO_2 and increased temperature treatments had varying impacts on species diversity parameters within the wheat growing season. The Elevated CO_2 + Increased temperature treatment increased the Shannon-Wiener index slightly during the early growing season, but decreased it later in the season. Species diversity was most similar between the Elevated CO_2 + Increased temperature and the Increased temperature treatment. The analysis of arthropod communities by trophic level showed that the Elevated CO_2 increased herbivorous insect richness and the Increased temperature increased parasitoid abundances, compared with the control. The treatments did not affect detritivorous and predaceous arthropod communities. The results of this study suggest that elevated CO_2 and increased temperature can affect arthropod diversity in wheat fields, and the effects may vary be tween both elevated CO_2 and increased temperature and individual elevation of either CO_2 and temperature.