[Aim] To investigate the effects of electrostatic and electric spraying of thiamethoxam on pest control and the insect communities in tobacco fields and provide a theoretical basis for the application of electrostatic spraying on tobacco.[Method] The control efficiency of thiamethoxam against Myzus persicae and Spodoptera litura, its deposition on tobacco plants and on soil, and its effects on the insect community were determined after spraying 25% thiamethoxam (0.66 g·L^-1) 1, 3 or 7 days with an electrostatic and an electric sprayer.[Result] One, 3 or 7 d after spraying thiamethoxam oxazine, the electrostatic spraying of thiamethoxam oxazine had significantly higher control effects on M. persicae and S. litura than electric spraying, and these control effects increased over time. The amount of thiamethoxam deposited on the tobacco leaves in the electrostatic spray treatment area was higher than in the electric spray treatment area, while the amount of thiamethoxam deposited in the soil in the electrostatic spray treatment area was lower than that in the electric spray treatment area, and both decreased with time. Both electrostatic and electric spraying caused changes in the insect communities in the tobacco fields. The changes in the numbers of pests and neutral insects caused by the electrostatic spraying were greater than those caused by the electric spraying. However, the change in the number of natural enemy insects caused by electrostatic spraying was less than that caused by electric spraying, and the species richness in the electrostatic spray zone of the tobacco fields was obviously higher than that in the electric spray zone. The visible effect of electrostatic spraying of the pesticide on the insect community in the tobacco fields was less than that of electric spraying. The S_t/S_i and S_n/S_p ratios of the electrostatic spray treatment were significantly higher than those of the electric spray treatment, which indicated that the stability of the insect community in the electrostatic sprayed tobacco field was higher than that in the electric sprayed tobacco field.[Conclusion] Compared with electric spraying, electrostatic spraying can increase thiamethoxam oxazine precipitation and, thus, enhance the pest control effect, while simultaneously reducing its soil deposition, thus, improving its ecological safety. Therefore, electrostatic spraying has good application prospects for tobacco pest control.