The effects of La-doping on the structural, magnetic, electrical transport and specific-heat properties in 4d perovskites Sr 1-x La x MoO 3 (0 ≤ x ≤ 0.2) have been investigated. The substitution of Sr ions by La ions does not change the space group of the samples, but increases the lattice parameter a (Å). The resistivity ρ and magnetic susceptibility χ decrease monotonously with the increase of x, while the electronic specific heat coefficient γ e increases. The resistivity of all samples shows a T 2 dependence in the low-temperature region of 2 K < T < 125 K and a T dependence in the high-temperature range of 130 K < T < 350 K, related to the electron -electron (e -e) and electron -phonon (e -ph) scattering, respectively. The specific-heat data agrees with the classical Dulong -Petit phonon specific heat, C cl = 3k B rN A = 124.7 J/mol K at high temperatures andat low temperatures. These behaviors can be explained according to the decrease of the density of states (DOS) at the Fermi energy level (E F ), N(E F ).