Abstract
The cross section of the process \({{e}^{ + }}{{e}^{ - }} \to {{\pi }^{ + }}{{\pi }^{ - }}{{\pi }^{0}}\) is measured in the center-of-mass energy region below 1 GeV at the integrated luminosity of 51.4 \({\text{p}}{{{\text{b}}}^{{ - 1}}}\) . The systematic error of the measurement is estimated at ~2.4 \(\% \) . The measured cross section is analyzed within the vector dominance model with allowance for the interference of the resonances \(\rho ,\omega ,\phi ,\omega ^{ '},\omega {\kern 1pt}^ {''}\) . The preliminary parameters of \(\rho \) and \(\omega \) mesons are obtained.