The ionic transport features were studied in PbCl₂ and SnCl ₂ single crystals and in KPb₂Cl₅, K ₂PbCl₄, PbCl₂-Al₂O₃, CsSnCl₃, and SnCl₂ - 6 mol % MCl (M = Li, Na, Ag, K, Tl, Rb, Cs) ceramic materials. A reference data review on electroconductivity of chloride-conducting solid electrolytes was made. A conclusion was made on application prospects of ionic conductors with predominant chloride conductivity as sensitive membranes in solid state electrochemical devices.