This paper briefly analyzes weld seam image recognition based on deep learning,highlights the weld seam image recognition technology based on deep learning,takes the measures to enhance weld seam image recognition based on deep learning as the entry point,and researches the aspects of data preprocessing and enhancement,the selection and optimization of deep learning models,the introduction of the attention mechanism as well as the adoption of the multiscale recognition strategy,which is expected to provide references for the relevant personnel.Thus,the quality of weld seam can be efficiently and accurately detected and evaluated to ensure the quality of welding.