Microhardness of cellular titanium structures obtained by 3D-printing was estimated. The build direction is taken into account. In this case, in the base lattice of the diamond type, zones of beams and nodes are considered. It is shown that the microhardness on the side surface of the base lattice is higher by about 5% than in the printing direction. It is established that the greatest dispersion of microhardness is characteristic for the direction of 3D-printing.