Disclosed is a hydraulic control device for a line marker for a planter. Disclosed is a hydraulic control device for a line marker for a planter, which is a hydraulic control device for a line marker for a planter that controls the left and right line markers on both sides of a planter to be lifted and rotated by hydraulic pressure provided by a tractor. A left and right hydraulic cylinder that rotates the left and right line markers in an up and down direction by a forward/backward movement while being installed in a seed drill； And a hydraulic circuit configured to retract the other hydraulic cylinder when the hydraulic cylinder of one of the left and right hydraulic cylinders moves forward, thereby controlling the left and right line markers operated thereby to be lifted opposite to each other. Module, The hydraulic control module includes a hexahedral hydraulic block； A first hydraulic supply port provided on a first surface of the hydraulic block to supply hydraulic pressure； A second hydraulic supply port provided on the first surface of the hydraulic block to supply hydraulic pressure； A first hydraulic discharge port provided on a second surface corresponding to the first surface of the hydraulic block, and allowing the piston of the left hydraulic cylinder to advance by discharging the hydraulic pressure provided from the first hydraulic supply port to the left hydraulic cylinder； A second hydraulic discharge port provided on the second surface of the hydraulic block, and allowing the piston of the right hydraulic cylinder to advance by discharging the hydraulic pressure provided from the second hydraulic supply port to the right hydraulic cylinder； And a control lever for controlling hydraulic pressure to be supplied to either the first hydraulic supply port or the second hydraulic supply port from the tractor.파종기용 라인마커의 유압제어장치가 개시되어 있다.개시된 파종기용 라인마커의 유압제어장치는 트랙터에서 제공되는 유압력에 의해 파종기 양 측의 좌,우 라인마커를 승강 회전되게 제어하는 파종기용 라인마커의 유압제어장치로서, 상기 유압제어장치는, 상기 파종기에 설치된 채,
