This Paper develops a mathematical model of the mooring cable's three dimensional space shape and tension distribution in the mooring torpedo system immersed in current.

A dynamic simulation model of start-up process including fuel pumped section and the dynamic nozzle valve lever, etc. is established for the torpedo thermal power system with pressure adjustment mode.

The concept of communication system and defending system for torpedo green and blue laser fuse group concerned in the article is just an embryo. There is still many details to be done.