The utility model belongs to the technical field of rock-soil geological engineering, and particularly relates to a rock slaking-durability experimental device. The rock slaking-durability experimental device is characterized in that testing on the rock slaking-durability characteristic under the synergistic effect of temperature, moisture and chemistry can be carried out on the premise that mechanical damage does not exist, and the accuracy of a rock slaking-durability experiment can be improved. The rock slaking-durability experimental device comprises an experiment frame mechanism, an experiment frame fixing mechanism, a water bath mechanism and a magnetic force stirring mechanism. The experiment frame mechanism is composed of a fixing column, an upper cover plate, a screen drum, an upper flange, lead screws and nuts. A through hole with a locking screw is formed in the experiment frame fixing mechanism and corresponds to the fixing column of the experiment frame mechanism. The water bath mechanism is composed of a container, a fixing support, a heater, a temperature meter and a control platform. The magnetic force stirring mechanism is composed of a slaking liquid container cover with a through hole, a slaking liquid container, a magnetic force stirrer and a magnetic force control platform.