The invention discloses a full-automatic efficient precision assembling machine. The full-automatic efficient precision assembling machine comprises a rack, a workbench arranged on the rack, a feeding supporting disc station, a product locating station, a feeding station, an assembling hot melt adhesive station, a to-be-assembled piece assembling station, a to-be-assembled piece supporting disc placing station, a jig transferring station, a pressure maintaining station, a detection station, a material taking station, an unqualified product receiving station and a qualified product supporting disc station, wherein the feeding supporting disc station, the product locating station, the feeding station, the assembling hot melt adhesive station, the to-be-assembled piece assembling station, the to-be-assembled piece supporting disc placing station, the jig transferring station, the pressure maintaining station, the detection station, the material taking station, the unqualified product receiving station and the qualified product supporting disc station are sequentially distributed around the workbench. Product locating jigs are transferred among the stations through a supporting and conveying mechanism, and devices on all the stations are connected with a PLC. The assembling machine is compact in structure, can achieve efficient and precise assembly of products and pieces to be assembled and integrates the feeding, hot melt achieve gluing, to-be-assembled piece gluing, detection and discharging processes, and the product assembling production line can be shortened.