All-inorganic lead halide perovskite nanocrystals doped with ytterbium demonstrate dual-band emission with visible band tunable by halide ratio change. Both visible and near infrared emissions can be excited via two-photon absorption by the perovskite matrix. It should be noted that the energy transfer from the perovskite matrix to the text{Yb}{3+} center is nonlinear and depends on temperature and excitation power.