A system for injecting a functional solution for fabric, comprising: a first supply portion provided with a supply roll for winding fabric; a second supply portion provided with a tank for manufacturing a functional solution by mixing functional materials having insulation, waterproofing, antifouling, antibacterial, and/or flame retardant properties with solvents, and a distributing device for discharging the functional solution stored in the tank; an injection portion 300 provided with a needle for injecting the functional solution supplied from the distributing device to inside the fabric transferred from the first supply portion, wherein the injection portion further comprises: a supporting member arranged across the direction of progress of the fabric; a first robot installed at both ends of the supporting member so that the supporting member moves reciprocally backward and forward with respect to the direction of progress of the fabric; a second robot mounted on the supporting member; a needle block mounted on the lower part of the second robot to configured to move upward and downward by the second robot; a needle valve mounted on the needle block and configured to receive the functional solution from the distributing device; and a needle socket mounted with the needle, the needle socket having been installed on the needle block to introduce the functional solution received from the needle valve and passing through the needle block; a drying portion provided with a hot air blower or a blower for discharging hot air of a temperature higher than a boiling point of the solvent in order to evaporate the solvent from the fabric passing through the injection portion; and a collection portion provided with a collecting roll for winding the fabric passing through the drying portion. a first supply portion provided with a supply roll for winding fabric; a second supply portion provided with a tank for manufacturing a functional solution by mixing functional materials having insulation, waterproofing, antifouling, antibacterial, and/or flame retardant properties with solvents, and a distributing device for discharging the functional solution stored in the tank; an injection portion 300 provided with a needle for injecting the functional solution supplied from the distributing device to inside the fabric transferred from the first supply portion, wherein the injection portion further comprises: a supporting member arranged across the direction of progress of the fabric; a first robot installed at both ends of the supporting member so that the supporting member moves reciprocally backward and forward with respect to the direction of progress of the fabric; a second robot mounted on the supporting member; a needle block mounted on the lower part of the second robot to configured to move upward and downward by the second robot; a needle valve mounted on the needle block and configured to receive the functional solution from the distributing device; and a needle socket mounted with the needle, the needle socket having been installed on the needle block to introduce the functional solution received from the needle valve and passing through the needle block; a supporting member arranged across the direction of progress of the fabric; a first robot installed at both ends of the supporting member so that the supporting member moves reciprocally backward and forward with respect to the direction of progress of the fabric; a second robot mounted on the supporting member; a needle block mounted on the lower part of the second robot to configured to move upward and downward by the second robot; a needle valve mounted on the needle block and configured to receive the functional solution from the distributing device; and a needle socket mounted with the needle, the needle socket having been installed on the needle block to introduce the functional solution received from the needle valve and passing through the needle block; a drying portion provided with a hot air blower or a blower for discharging hot air of a temperature higher than a boiling point of the solvent in order to evaporate the solvent from the fabric passing through the injection portion; and a collection portion provided with a collecting roll for winding the fabric passing through the drying portion.