From a data analyst's perspective, this paper delves into the price composition, influencing factors, and transportation time of sea freight from Shenzhen to the United States, offering optimization strategies. By comparing FCL, LCL, and bulk cargo transportation modes, it analyzes the impact of cargo characteristics, transportation distance, and fuel prices on costs, as well as the influence of transportation modes, shipping companies, and route selection on time efficiency. This aims to help businesses strike a balance between time efficiency and cost, achieving efficient sea freight.