The invention discloses a split-type source rock hydrocarbon generation simulation system and a source rock hydrocarbon generation kettle. The system comprises a plurality of kettles, a plurality of temperature controllers, a computer and at least one pressure pump, wherein each kettle is coupled with one corresponding temperature controller; the plurality of temperature controllers are connected with the computer; the plurality of kettles are connected with the pressure pump through connecting pipelines respectively; the pressure pump is coupled with the computer and used for providing pressure for the kettles; the computer controls the temperature and temperature rise programs of the corresponding kettles through the temperature controllers; each kettle comprises a kettle shell with clamping groove, a kettle cover with clamping groove and a sealing plug; the kettle cover is engaged with the kettle shell; the sealing plug is provided with a sealing conical surface; a sealing member which is matched with the sealing plug is annularly arranged outside the sealing plug; and the side wall of the sealing member is contacted with the inner wall of the kettle shell. The system can simulate the same sample at different temperature points and also simulate different samples at the same temperature point. Meanwhile, the pressure resistance of the kettle is improved, and the research on the influence of the pressure on the hydrocarbon generation is made possible.