Objective To explore the characteristics and possible mechanism of the attention network function in people with different mobile phone dependence. Methods According to the Mobile Phone Addiction Index（ MPAI）， the volunteers were divided into groups of high and low mobile phone dependence， with 27 participants in each group. Attention network test was applied to compare the attention function between the two groups. Results The time of executive control network in the group of high mobile phone dependence was（ 102.96±19.15） ms， which was significantly longer than that of the low one（ 89.85±21.57） ms（ t=2.363， P=0.022）. The MPAI score was positively correlated with executive function network efficiency（ r=0.463， P ＜ 0.001）. There was no statistical difference between the two groups in alerting and orienting network efficiency. Conclusions Compared with the group of low mobile phone dependence， the executive control in the group of high mobile phone dependence is poor， and the degree of decline is related to the degree of mobile phone dependence.