FIELD: organic synthesis catalysts. SUBSTANCE: invention provides polyether-polyol synthesis catalyst having following composition: Zn3-vMv[Co(CN)6]2•w(H2O)•x(L)•y[Zn(X)n•[M(Y)m], wherein all symbols are defined in claim 1. Catalyst is prepared by bringing into reaction 1-90% aqueous solution of zinc salt Zn(X)n and salt M(Y)m with 0.5-50% aqueous solution of cobalt(III) salt having formula M3[Co(CN)6]r, where r=1 or 2 and M is alkali metal, in presence of organic complex ligand L. EFFECT: shortened induction time. 2 cl, 6 ex
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