The invention discloses a code information tracing management method based on SMT on-line 
mount products, and relates to the technical field of SMT 
mount equipment. The code information tracing management method based on SMT on-line 
mount products includes the following steps: 1) based on an operation 
control system of the SMT mount equipment, creating the unique graph code of the product on an SMT 
production line; 2) generating a graph code 
database of the product on the SMT 
production line, and synchronously uploading the product information, on the SMT 
production line, corresponding to thegraph code, to a 
cloud server to save; 3) performing graph code printing on a PCB circuit board which is conveyed to a code printing 
workbench, wherein after graph code printing is completed, the 
system enters the product production process; and 4) entering the 
system to scan the graph code through a 
smart phone or a hand PDA, automatically reading the product information, on the SMT production line, saved in the 
cloud server. The code information tracing management method based on SMT on-line mount products can use graph code to replace a paper 
label or stamp, thus improving the production efficiency and avoiding manual mis-pasting, error pasting, or error printing, and can realize automatic and intelligent information tracing of the products on the SMT production line.