The utility model discloses a controllable ocean thermal technology environmental simulation system of warm -pressing, including sea water simulation container, with the gaseous stabiliser of sea water simulation container pipe connection, be provided with the isolating valve on the pipeline between sea water simulation container and the gaseous stabiliser, sea water simulation container and gaseous stabiliser still are provided with the benefit drain valve respectively, still be provided with heating power adjustable heater, heat transfer power adjustable heat exchanger, thermometric component, pressure measurement subassembly and level gauge in the sea water simulation container, sea water simulation container, gaseous stabiliser and pipeline outer wall have all laid the heat preservation. The utility model provides an in experiment of thermophysics device sea water thermal technology environmental simulation's a difficult problem under the continental rise condition, through the regulation of this system, can set up ocean thermal technology's environment fast and stable, and have equipment form simple, control characteristics such as simple and convenient, stable performance.