It is reported on realization of pulsed operation of InGaAs/InGaAlAs strain-compensated multiple-quantum-well lasers at room temperatures. The working wavelength is 1.56 μm；the threshold current density for the stripe waveguide lasers is less than 1.85 kA/cm2；for the ridge waveguide lasers,the threshold current is 35 mA. The incorporation of compensated strain,which makes the multiple-quantum-well design applicable,leads to an obvious improvement on device temperature characteristic.