Objective To determinate the packaging and logistics modular of the military material transportation system at sea. Methods Based on analyzing the determination factors of logistics modular, according to the problems in packaging and logistics modular of the military material transportation system at sea, logistics modular of maritime material transportation was developed. And the dimensions of maritime material transportation package were introduced after analyzing the material package modular theory. Results Packaging and logistics modular of the maritime material transportation was determined. Conclusion The packaging modular for the navy military logistics can be unified into 600 mmX400 mm, and the logistics modular was limited to 1200 mm X1000 mm and 1300 mmX900 mm. From a long- term viewpoint, the logistics modular for the navy military system is consistent with national logistics system.