The utility model provides a but be used for fluid environment two experiment testing arrangement that turn round of roll adjustment rock down, includes: upper portion pressure head, data transmission line, temperature sensor, slider upper portion horizontal cylinder support point, the inside stage body upper portion of bottom base, the inside stage body lower part of bottom base, heater, fluid level control valve, bottom base lower part tubular structure, bottom base upper portion box structure, slider, experiment rock specimen, upper portion pressure head contact point, slider screw hole, temperature control unit. But the different rock specimens of device adjust the slider interval adaptation size is adjusted with temperature sensor with the heater through the fluid level control valve according to the rock core present position simultaneously and is used the liquid temperature with monitoring to test to device lower part tubular structure guarantees that it can be used for multiple different press. This experiment testing arrangement has overcome that current rock is two turns round the not enough of experimental apparatus, can satisfy that the rock is two under different environment, the different sample size condition turns round the actual requirement of experiment, and installs simply, convenient.