Helium cold box system for copious cooling environment test

The invention discloses a helium cold box system for a copious cooling environment test. The helium cold box system comprises a liquid nitrogen heat sink vacuum container, a helium cold box, container guide rails and a helium inlet and outlet main pipe. The container guide rails are arranged at the bottom of the vacuum container, a roller mechanism is arranged at the bottom of a supporting frame of the helium cold box, and the roller mechanism is arranged on the container guide rails in a rolling mode. The helium inlet and outlet main pipe provides an inlet and outlet helium cold source for the helium cold box. The helium cold box for the copious cooling environment is of a hexahedron enveloping structure, the space low-temperature environment can be simulated more truly, the temperature is lower than 30 K, the copious cooling environment test need of a temperature area of -215 DEG C can be met, the flow channel arrangement of the helium cold box is in the 'three-series connection and two-parallel connection' mode, and hence the uneven flow distribution problem of helium in the cold box is effectively solved.