The invention discloses a quenching phosphorated fluid for metal comprehensive processing, which is prepared by the following raw materials in percentage by weight: 5 percent of sodium silicate, 5 percent of zinc nitrate, 5 percent of H3PO4, 1 percent of acid manganous phosphate, 1 percent of calcium sulphate, 1 percent of ammonium molybdate, 1 percent of calcium nitrite, 1 percent of magnesium chloride, 1 percent of surface active agent and the balance of water. The quenching phosphorated fluid is used for carrying out deoiling, derusting and phosphorating processing on the surface of metal simultaneously, has non-poisonous processing fluid and no metal pollution and is comprehensive processing fluid with favorable economic benefits.