Faced with the need to carry out critical operations for the installation of flexible structures and subsea equipment, the industry invests not only in products but also in structural analyzes before the operations with the objective of valuing safety and protection of life in all phases of a project. The motivation of this work is to analyze the mechanical characteristics of the structures used in the production and transport of oil when subjected to the efforts arising from the process of installing submarine lines. Consequently, the structural analysis of the direct vertical connection operation of a flexible line installation between subsea equipment was developed through the Orcaflex software. As conclusion, will be demonstrated the result of the analyze for the best configuration of the line launching operation and a motivation for such choice.