To provide a draining structure that is inexpensive to manufacture and capable of draining into a gutter block rainwater seeping through roads and rainwater on the surfaces of the roads near the boundary to the gutter block.

The draining structure has the gutter block 2 and a drainer 3 mounted on the gutter block 2. The gutter block 2 includes a draining passage 5 formed through a sidewall 4 thereof, and a communicating recess part 7 formed in an outer surface 4b of the sidewall 4 and being open to the upper end of the sidewall 4 and in communication with the inlet part 5a of the draining passage 5. The drainer 3 is provided with a plurality of through holes 11, 11 bored in its front-to-back direction and in communication with a clearance K and/or the communicating recess part 7.