The invention discloses a spline roller type licorice root fluid extract extraction device with a feeder and a carbonization forming machine. The feeder is arranged above a machine body; three levels of contra-rotating spline rollers are arranged in the machine body; a licorice root guide slot is arranged below each level of contra-rotating spline roller; the last level of guide slot is connected with a hopper of a licorice root elevator; a discharging slot of the elevator is connected with a dryer through a screw extrusion dehydrator and a slag bucket; the dryer is connected with a carbonization furnace, a pulverizer, a pulverization fan and a rod manufacture machine in sequence; the elevator is provided with a liquid feeding valve; the upper part of the machine body is provided with a filter and a liquid discharging pipe; the liquid discharging pipe is connected with a lifting film type evaporator; a spline glue tray pulse gas explosion device is arranged in the machine body; one side of the machine body is connected with an automatic control steam valve and a manual steam valve through a steam pipeline. The three levels of contra-rotating spline rollers and the spline glue tray pulse gas explosion device have distinct characteristics and can be cooperated to accelerate the effective ingredients of licorice roots to be leached and extracted, and therefore, the spline roller type licorice root fluid extract extraction device has relatively high practical application value.