The temperature dependence of the specific electrical resistivity, ρ, of the Bi1.9Lu0.1Te3 alloy has been studied within the temperature 2 ÷ 230 K interval. Minimum in the resistivity was found at temperature Tm  11 K. This minimum is originated from a change of conductivity mechanism. Above Tm, the resistivity ρ increases as temperature increases. This behavior is due to the electron mobility decrease via an acoustic phonon scattering at heating. Below Tm, the variable-range hopping conductivity based on electron tunneling takes place. In this case, ρ increases as temperature decreases. Two electric field regimes of the hopping conductivity were observed in the resistivity versus electric field strength dependences.