Concrete block and concrete brickwork

The utility model provides a concrete block, wherein the concrete block comprises two arm parts and two rib parts for connecting the two arm parts; and recesses extending longitudinally are formed on two end parts of each arm part in the transverse direction. The utility model also provides a concrete brickwork, wherein the concrete brickwork is formed in a way that the concrete bricks are constructed along three-dimensional directions through the adoption of mortar. With the adoption of the concrete block and the concrete brickwork, the energy saving effect and the anti-shearing force of the concrete brickwork can be effectively enhanced; and meanwhile, the anti-permeability, sound insulation and anti-crack performances of the brickwork are enhanced as well, and the energy saving effect of clearance is promoted.