The utility model relates to an envelope of laboratory discloses an envelope adjustable laboratory that loads, include the envelope who constitutes by outer insulation material layer and interior insulation material layer, have the circulation air supply passage of guide plate between outer insulation material layer and the interior insulation material layer for inside equipartition, still include envelope load and/or envelope internal face temperature regulation and control system, every set of this system comprises heat supply / confession cold die piece, module return air inlet, module supply -air outlet, the air supply person in charge, air -feeding branch pipe, air intake, air inlet governing valve, the terminal temperature sensor of air supply system and internal face temperature sensor. The utility model discloses can realize that envelope internal face temperature and/or envelope load is adjustable in real time, and only increase less space on original laboratory basis, along with the increase of laboratory's volume, the influence that variation in load response time received is less.