The invention relates to the technical field of tube processing and production, in particular to automatic processing equipment for metal tubes. The automatic processing equipment comprises a lathe bed, a tip cone, a turning mechanism and a clamping mechanism, wherein the clamping mechanism comprises a power assembly, a clamping assembly comprises a jacket which is rotatably arranged in the powerassembly and a pretightening part which is used for extruding the jacket so as to press a workpiece located in the jacket, and the pretightening part makes intermittent contact with the power assemblyso as to synchronously drive the workpiece to rotate to be turned by the turning mechanism; a feed mechanism comprises a feed part which communicates with the jacket and a push assembly which is located on one end of the feed part so as to transfer the workpiece located in the feed part into the jacket in a reciprocating mode, and the pretightening part is driven to make intermittent contact withthe power assembly by the push assembly. In the process that a steel tube is directionally transferred by the push assembly, the workpiece is pressed by a fixture, and a jacking part makes contact with the power assembly, so that the workpiece rotates, and the technical problem of low turning production efficiency in the prior art is solved.