The main pest of Areca catechu (Areca catechu L.), T. rufivena in Hainan Province as the research object, the present harm situation, biological and ecological  characteristics, occurrence regularity and natural enemy resources of T. rufivena in the main areca producing areas of Hainanwere investigated and clarified. The biological control factors with biological activity were screened out. The new formulat and pesticide formulation for T. rufivena were developed, and own intellectual property rights in pollution-free control of the T. rufivena.