Based on the data of 30 provinces in China, this paper studied the impact of mobile Internet on agricultural TFP. Results showed that:①farmers' ownership of mobile devices promoted agriculture TFP;②different mobile networks had different effects on agriculture TFP;③in terms of agricultural development level, there was no regional difference in the effect of mobile terminal equipment on agricultural TFP, but the promotion effect of mobile network on agricultural TFP was greater in developed and medium areas than in less developed areas;④in terms of agricultural output value scale, in the regions with larger and medium agricultural output value, farmers' ownership of mobile terminal equipment promoted agriculture TFP more than those with smaller agricultural output value. However, there was no regional difference in the effect of mobile network on agriculture TFP. The conclusion of this paper could be a reference to the construction of mobile Internet in rural areas.