The invention discloses a full-automatic device capable of staining tin, riveting a terminal and inserting a plastic shell for a connecting line. The full-automatic device comprises a pay-off rack, a line feeding component, a stripping and cut-off component, a line twisting component, a scaling powder gluing component, a tin applying component, a line stripping component, a terminal riveting die, a rotary plastic shell delivery component, a rotary material clamping component, a plastic shell inserting component, a first line clamping component and a second line clamping component, wherein the line feeding component is driven by a line feeding horizontal mobile platform; the line feeding horizontal mobile platform comprises a line feeding X-axis driving mechanism and a line feeding Y-axis driving mechanism; the stripping and cut-off component comprises a stripping cut-off mounting rack, a stripping cutter, a cut-off cutter and a stripping and cut-off driving mechanism; the first line clamping component is driven by a three-dimensional mobile platform; the three-dimensional mobile platform comprises a first clamp X-axis driving mechanism, a first clamp Y-axis driving mechanism and a first clamp Z-axis driving mechanism; the second line clamping component is driven by a second clamp X-axis driving mechanism. Through the structural design, the full-automatic device can automatically and efficiently stain tin, rivet the terminal and insert the plastic shell for the connecting line, is high in degree of automation and working efficiency, and saves labor force.