Device used for simulating sedimentary rock formation process

The utility model discloses a device used for simulating a sedimentary rock formation process. The device is characterized by comprising at least two reaction kettles used for placing of samples, furnace bodies which are used for heating the reaction kettles and in one-to-one correspondence with the reaction kettles, a pump communicated with any reaction kettle and used for providing fluid pressure into the reaction kettle, and one or more hydraulic presses also connected with the reaction kettles and used for providing lithostatic pressure into the reaction kettle. The device can be used for simulating impacts of temperature, pressure and fluid composition under a real formation condition on whole sedimentary rock during the formation process.