Problems in bilingual teaching of Firing principle of Coast Guard Shipboard Weapons are analyzed in this paper. Some problems could not be solved in existing theory research. Scheme of research and guiding before class is designed in detail to help students overcoming the learning fear.And the programs of how to lead students to self-study are also provided. The programs can skillfully guide students to consciously reading materials, and the network interaction extends the professional teaching as well as stimulates the creative thinking of students. Finally, the practical implementation methods for examination and evaluation are proposed. The practice shows that these proposed methods are effective for the bilingual teaching of Firing principle of Coast Guard Shipboard Weapons.