The present work deals with obtaining and studying of a structure and physic and chemical properties of the compounds with composition La1-2xBixSrxMn1-yNiy03±δ (х=0.15, 0.25, у=0.0-0.4). The samples were obtained by solid state reaction. A phase composition was checked using X-ray diffraction analysis. Crystallographic characteristics were calculated. A particles size was determined. A porosity, surface and chip morphology of the sintered and powder samples has been studied. Temperature dependences of magnetic susceptibility have been plotted for some samples. The electroconductivity dependence from oxygen partial pressure was obtained for single phase sample. Linear changing of sample sizes from temperature was measured using dilatometric analysis. The value of thermal expansion coefficient was determined.