As a key piece of domestically produced core equipment， the shallow-water subsea christmas tree has successfully rolled off the production line in recent years. Its successful development relies on a scientific and rigorous assembly and testing process. This paper takes the assembly and testing of a 10000-Psi （69MPa）shallow-water subsea christmas tree as the research subject， detailing the necessary supporting equipment and facilities， including hydrostatic test equipment， pressure testing chamber facilities， pneumatic testing equipment， test pool， high-pressure circulation flushing equipment， and site layout requirements. It provides a comprehensive list of the supporting equipment and facilities required for the assembly and testing of christmas trees， offering a reasonable reference example for the functional layout of domestic shallow-water subsea christmas tree assembly and testing sites， as well as the supporting equipment and facilities. This contributes to further standardizing and scaling up the assembly and testing production of domestic christmas trees.