The invention discloses two-phase non-uniform pre-reaction curved-surface fully non-destructive automobile body welding equipment. The equipment comprises a fixed base, a vehicle body transportation guide rail, an elastic pre-reverse pushing type curved memory alloy assembly type vacuum adsorption clamping device, a transfer conveying plate, a middle transfer lifting supporting mechanism, an atomization spraying type carbon dioxide capturing device, a multi-joint all-dimensional welding mechanical arm, a two-phase non-uniform gas-liquid mixing fully non-destructive gravity self-adjusting type blocking welding device, a shape restoring assembly, a capturing air pump, a capturing air suction cover, a capturing air exhaust elastic telescopic hose and a capturing air supply pipe. The invention belongs to the technical field of automobile body welding, and according to the two-phase non-uniform pre-reaction curved-surface fully non-destructive automobile body welding equipment, the full non-destructive welding process for workers and a vehicle body is realized, and the same automobile body transportation guide rail is used for stably clamping various types of automobile bodies.