The utility model discloses a marine environment boundary condition analogue means with adjustable, the system of awaiting measuring on including marine environment analog system, motion platform and being located motion platform, the system of awaiting measuring includes inner channel, marine environment analog system places with the motion platform separation, marine environment analog system includes first side direction interface, motion platform includes second side direction interface, the second side direction interface and the fixed connection of system that awaits measuring, but loose in motion platform, first side direction interface and second side direction interface are connected through the flexible coupling piece, the flexible coupling piece is the fluid pipeline, the internal diameter of first side direction interface, second side direction interface and flexible coupling piece all is greater than more than the system that the awaits measuring internal interface pipeline decuple. The utility model discloses extended to motion platform with marine environment analog system's border, solve marine environment analog system is limited by the problem of motion platform bearing capacity, safe distance restriction, has realized the analog nimble function of adjusting of marine environment boundary condition.