A control valve for pouring color paste in both large amount and small amount, comprising a valve body and a valve core disposed in the valve body, wherein the valve body is provided with a large pump inlet-outlet opening, a small pump inlet-outlet opening, a colorant bucket inlet-outlet opening, and a colorant dispensing outlet; the valve core, which is provided with a passage, is rotated to allow connection of the large pump inlet-outlet opening and the small pump inlet-outlet opening with a colorant bucket or dispensing thereof, with at least the following three connecting structures being involved: 1the large pump inlet-outlet opening is connected with the colorant bucket; or the small pump inlet-outlet opening is connected with a colorant bucket; or the large pump inlet-outlet opening and the small pump inlet-outlet opening are both connected with the colorant bucket; wherein the three ways are for single or combined use; 2 in a configuration to dispense color paste solely via the large pump inlet-outlet opening, the large pump inlet-outlet opening is connected with the colorant dispensing outlet for dispensing; or when in a configuration in which color paste dispensing is allowed via both the large pump inlet-outlet opening and the small pump inlet-outlet opening, the large pump inlet-outlet opening and the small pump inlet-outlet opening are both connected with the colorant dispensing outlet for dispensing; 3 in a configuration to dispensing color paste solely via the small pump inlet-outlet opening, the small pump inlet-outlet opening is connected with the colorant dispensing outlet for dispensing; wherein the control valve for pouring color paste in both large amount and small amount is characterized in that the colorant bucket inlet-outlet opening is connected with a colorant bucket branch inlet-outlet opening I by means of a first branch passage and with a colorant bucket branch inlet-outlet opening II by means of a second branch passage; the valve core is provided with an axial passage, and a radial passage I, a radial passage II, and a radial passage III respectively connect with the axial passage; the valve core is provided in surface thereof with a passage; the passage and the radial passage I correspond to the large pump inlet-outlet opening, and the axial passage is connected with the small pump inlet-outlet opening. 1the large pump inlet-outlet opening is connected with the colorant bucket; or the small pump inlet-outlet opening is connected with a colorant bucket; or the large pump inlet-outlet opening and the small pump inlet-outlet opening are both connected with the colorant bucket; wherein the three ways are for single or combined use; 2 in a configuration to dispense color paste solely via the large pump inlet-outlet opening, the large pump inlet-outlet opening is connected with the colorant dispensing outlet for dispensing; or when in a configuration in which color paste dispensing is allowed via both the large pump inlet-outlet opening and the small pump inlet-outlet opening, the large pump inlet-outlet opening and the small pump inlet-outlet opening are both connected with the colorant dispensing outlet for dispensing; 3 in a configuration to dispensing color paste solely via the small pump inlet-outlet opening, the small pump inlet-outlet opening is connected with the colorant dispensing outlet for dispensing;