The invention discloses an oxygen-bearing thermal decomposition and catalytic oxidization integration treatment method for chemical waste salts. The oxygen-bearing thermal decomposition and catalyticoxidization integration treatment method comprises the steps that in a tunnel kiln hearth and in an air atmosphere, the chemical waste salts containing organic pollutants are subjected to thermal decomposition treatment; the organic pollutants are volatilized to form gas containing the organic pollutants; the gas passes through a catalyst bed layer in a heat insulation layer on the upper part of the tunnel kiln hearth and is subjected to oxidization reaction under the effect of a catalyst; high-temperature waste gas generated by the oxidization reaction is emitted from a gas outlet in the topof a tunnel kiln and is subjected to heat exchange with fresh air; and the fresh air subjected to heat exchange enters the tunnel kiln hearth to provide heat form thermal decomposition. By adopting the oxygen-bearing thermal decomposition and catalytic oxidization integration treatment method, heat in the gas which is generated by thermal decomposition is transferred to the catalytic oxidization process without loss; up-to-standard emission of tail gas is realized through catalytic oxidization; and heat released by oxidization is used for preheating air used for thermal decomposition, so thatheat of the system is fully utilized. The oxygen-bearing thermal analysis and catalytic oxidization integration treatment method has the characteristics that heat loss is zero; operation is continuous; energy is fully utilized; and the treatment amount is large.