An intrinsic fluorescent green fiber includes 98.00 to 99.00 parts by weight of a carrier, 0.10 to 0.20 parts by weight of a yellow colorant, 0.08 to 0.20 parts by weight of a blue colorant, and 1.00 to 1.50 parts by weight of a titanium dioxide. When a content of 0.10 wt % to 0.20 wt % of the yellow colorant and a balance of the carrier are mixed to form a yellow fiber, the L*, a*, and b* values of the yellow fiber are respectively between 101.27 and 101.72, between −17.61 and −13.47, and between 89.84 and 108.79. When a content of 0.08 wt % to 0.20 wt % of the blue colorant and a balance of the carrier are mixed to form a blue fiber, the L*, a*, and b* values of the blue fiber are respectively between 55.60 and 66.80, between −22.69 and −22.70, and between −37.50 and −31.80.