In order to explore the relationship among mobile phone use,mobile phone addiction and academic performance of primary school students, 187 Chinese primary school students were surveyed on mobile phone use, mobile phone addiction and academic performance. The results showed that 38.7% of primary school students had their own mobile phone. 41.3% of the students with mobile phones asked for mobile phones on their own initiative, and the rest were given a mobile phone by their parents or elders. 12.6% of primary school students use mobile phones for more than one hour a day and 24.5% use mobile phones for more than half an hour a day. From high to low, the top three ways primary school students use their phones are networking, information search and phone calls. About 16% primary school students have the tendency of mobile phone dependence; there is no significant difference of grade, gender and one-childin mobile phone dependence. There was a positive correlation between cell phone use time and cell phone dependence.Pupils' academic performance was at an upper level.There was a significant negative correlation between MPA and academic performance.

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