The nanocapillarity phenomenon involves the ultra-low frictional flow of water molecules via a nanoscale channel, here, numerous nanochannels within graphene oxide (GO) laminates. The nano-confined water molecules in the GO nanochannels form the square lattice of an ice bilayer, which melts and jumps into other channels, so that they can slip between the GO flakes at a speed of a few m/s. In this work, a GO laminate was suggested as a water inflow channel using nanocapillarity to delay the critical heat flux (CHF) phenomenon in a boiling heat transfer system, whereby the growth and formation of dry spots can be prevented. The nanocapillarity speed of the water molecules into the nanochannels was derived based on the measured water penetration flux. CHF enhancement was demonstrated, up to 139%, on a 1-µm-thick GO laminate. Accordingly, the GO laminate offers an efficient modification method to increase the efficiency and safety margin of heat transfer systems.