The invention discloses a wood floor coloring device. The wood floor coloring device structurally comprises a controller,mode adjusting buttons,a transporting and coloring device,a roller,an operatingplatform,a control box,a dyestuff chamber,a water drawing pipe and a water drawing motor. The transporting and coloring device is provided with a uniform speed transporting mechanism,a hot air dryingdevice,a fixed driving device,a dyestuff coloring device,a push triggering device,a mechanical transmission device,a dyestuff recovery device and a metal frame. The wood floor coloring device has theadvantages that by means of the added transporting and coloring device,wood floors pass the coloring device through a transporting conveying belt,a material drawing pump in a paint tank draws paint,the paint enters a coloring roller through a paint conveying pipe,the paint dyes the wood floors through material through holes in the surface of the coloring roller,the paint on the wood floors is uniformly brushed,the excessive paint permeates into the paint tank,resources are saved,the dyed wood floors are conveyed into the drying box to be surface-dried,the whole process is automatic,and the working efficiency is high.