The experiment of red, green and blue laser generating simultaneously in gas-filled negative curvature hollow-core fiber is reported. A hydrogen-filled Ice-cream negative curvature hollow-core fiber is pumped with a high peak-power, narrow linewidth, subnanosecond pulsed 1064 nm microchip laser, generating 737.6, 564.2, 457.1 nm pulses corresponding to the first, second and third vibrational anti-Stokes waves by cascaded stimulated Raman scattering of hydrogen molecules. The relative intensities and output modes of red, green and blue laser can be controlled by adjusting the pump power and the pressure of hydrogen filled in the hollow-core fiber.