There is no simple answer to this question. Perovskites display a large variety of electronic properties including anti-ferromagnetism (i.e. LaMnO3), ferromagnetism (i.e. La(1-x)Sr(x)MnO3), ferroelectricity (i.e. BaTiO3) and many others.

Many perovskites have a strong electron correlation, meaning that many classical concepts, based on the near free electrons approximation etc are no longer valid. This includes Mott-Hubbard insulators and the "colossal" and "giant" magnetoresistance (CMR/GMR, such as that observed in doped manganites) and more.

Some perovskites, such as SrTiO3 behave similarly to conventional semiconductors. Others, such as SrRuO3 have a more metallic nature, but both also feature other complex physics such as superconductivity at very low temperatures in SrTiO3 and interesting magnetic properties in SrRuO3.

Another layer of complexity stems from the electronic contribution of defects to the electronic properties of these materials, with the most notable example being vacancies.

See for example H.Y. Hwang et al., Nature Materials 11, 103 (2012) for a short review on the complexity of transition metal oxides and their interfaces.

There is a vast range of proveskites materials that show different electric properties, some are Dielectric (CCTO), sometimes semiconductive properties (also CCTO, A(1-x) Cu(3-x) Ti4 O12), .... and conductive, too. So, it's very complex to answer this question in a word!

Because the answer is so comlpex as said Mr Ali and Mr Lior, so, what is the technique with it, we can identify electric behavior of my perovskite powder ?

I don't know how to measure electrical properties of powders. I assume that your powder will eventually be used for making a solid (i.e. by sintering) and I would suggest measuring the properties of that final product. The most common way of probing the electronic structure is transport measurements, typically done with a combination of van der Pauw resistivity and Hall measurements at different temperatures.

You can find some discussions on these in the following links:

https://www.researchgate.net/post/Can_anyone_help_with_Hall_Effect_measurements

https://www.researchgate.net/post/How_are_carrier_concentration_and_mobility_obtained_from_a_Van_der_Pauw_experiment

Besides these measurements there are many other probes you can apply to the electronic structure of your material (XPS, ARPES, XAS(EXAFS/NEXAFS et al), XMCD and many others) but I believe that vdP+Hall are usually the easiest to start with.

Thank you so much Mr Lior for your full answer

Perovskites are really flexible materials in the sense of their electrical behavior. The electronic phase present in the ceramics are either semiconducting, insulating or metallic depending upon their intrinsic parameters such as stoichiometry and oxygen content. Also, their electrical phases are strongly depend upon the external parameters such as magnetic field, electric field, temperature, etc. You can play with your ceramics by varying these internal as well as external parameters to meet your desires and requirement aspects.

the commonest perovskite, MgSiO3, which forms most of the lower mantle, is an insulator!