Hi @TAN860421 ,
You can't import pre-trained models with ckpt format as ArcGIS Pro deep learning tools create only 2 formats (emd, dlpk).
I can recommend either train the model again using ArcGIS Pro deep learning tools (or ArcGIS API for Python) or you can download esri's pre-trained models from this link. if you can find a relevant model to yours.
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