This　paper　improves　the　image　classification　task　based　on　deep　learning　and　proposes　a　new　font　grading　system　to　help　calligraphy　lovers　to　practice　calligraphy.　The　basic　model　of　the　framework　proposed　in　this　paper　is　ResNet,　and　then　dilated　convolution,　deformable　convolutional,　and　deformable　pooling　are　used　on　the　traditional　ResNet　to　improve　performance.　Experimental　results　show　that　the　proposed　algorithm　can　make　a　reasonable　judgment　on　handwriting.　©　Springer　Nature　Singapore　Pte　Ltd.　2020.