the present invention provides rice brown planthopper resistance gene bph14 . it has a nucleotide sequence as shown in seq id no : 1 and its cdna sequence is shown in seq id no : 2 . the bph14 gene in the present invention belongs to the cc - nbs - lrr gene family , its coded protein is related to plant disease resistance . bph14 gene has the function of resisting brown planthopper . by introducing bph14 gene into ordinary rice variety through genetic transformation and cross breeding , the brown planthopper resistance of rice can be increased , so that the harm caused by brown planthopper can be alleviated and the aim of increasing and stabilizing production can be achieved .