The invention discloses austenitic stainless steel pickling passivation paste and a pickling passivation process, and relates to the technical field of stainless steel surface treatment, in particularto the austenitic stainless steel pickling passivation paste and the pickling passivation process. The austenitic stainless steel pickling passivation paste comprise the following raw material components of, in parts by percentage, 5-30 parts of corrosive agent, 10-40 parts of passivator, 1-5 parts of penetrating agent, 1-3 parts of corrosion inhibitor, 20-40 parts of filler and the balance water. The corrosive agent, the passivator, the penetrating agent, the corrosion inhibitor and the filler are mixed together with water according to a specified proportion, the mixture is uniformly stirredand then integrally prepared into pasty paste, and the prepared mixture is the passivation paste. According to the austenitic stainless steel pickling passivation paste and the pickling passivation process, the problem that the integrity of a passivation film is greatly reduced due to the fact that oxide films on the surfaces of stainless steel equipment and parts are damaged in the manufacturingprocesses of forming, assembling, welding and the like of the stainless steel equipment and the parts can be effectively solved, and the situation that due to defects or incompleteness of the passivation film, the stainless steel equipment or the parts can still be corroded in a corrosion environment is avoided.