Fire comprehensive simulation experiment platform and experiment method

The invention provides a fire comprehensive simulation experiment platform and experiment method.The fire comprehensive simulation experiment platform comprises a building body, a retaining wall and a calorimetric system, the building body is provided with multiple layers, and each layer comprises a combustion chamber; an image acquisition device I and a temperature measuring device are mounted in the combustion chamber; one wall body of the combustion chamber is selected as a test wall body, a window is formed in the test wall body, and the window is closed or the size of the window is adjusted by additionally arranging a fireproof plate; the two retaining walls are movably arranged on the outer side of the test wall body and matched with the test wall body to simulate a U-shaped or L-shaped building facade structure, and the heat measuring system is used for monitoring the fire heat release rate. The fire comprehensive simulation experiment platform and the experiment method not only can singly simulate an