Through the active layout of intelligent manufacturing, the portable allposition intelligent welding robot MICROBO is introduced for the welding of closure weld at the dock loading stage. MICROBO can automatically calculate the welding parameters used for each welding bead. By default, it uses the solid cored wire, but in order to improve the efficiency, it switches to using the flux cored wire. The suggestions for manual adjustment of welding parameters are given, including increasing the current by 20~30 A, increasing the voltage by 3~5 V, and reducing the welding speed by 40~60 mm/min for each welding bead. The welding technologies in three different welding positions of flat butt welding, vertical butt welding, and oblique 45° butt welding are proposed. Attention should be paid to avoid the influence of wind on the welding quality in the external field construction, and the specially made integrated wind shield can effectively reduce the porosity defects. The robot’s adaptability to the groove is not strong, so the cutting quality and assembly precision of groove should be controlled in use.