The utility model discloses an improved generation printing ink groove, including printing ink groove body, advance the china ink pipe, the version roller goes out china ink mouthful and scraper, be provided with on the left side wall of printing ink groove body with frame swing joint's backplate, be provided with on the right side wall of printing ink groove body with frame swing joint's preceding baffle, it still includes heating device, induction system and controller, induction system are used for responding to this internal printing ink temperature of printing ink groove to feed back to the controller, the controller is used for controlling this internal printing ink of heating device heating printing ink groove, and wherein, heating device is equipped with a plurality of electric heat pieces including setting up at the inside intermediate layer of printing ink groove body in the utility model discloses a this internal printing ink temperature of induction system response printing ink groove to feed back to the controller, this internal printing ink of controller control heating device heating printing ink groove makes printing ink keep a constant temperature all the time, avoids low temperature environment to the influence of printing ink, has effectively improved the quality of product