Light　field　is　a　kind　of　4D　signal　that　contains　rich　information　about　position　and　angle　of　light,　which　can　express　the　scene　more　accurately.　Light　field　is　easily　affected　by　noise　for　the　hardware　sensitivity.　This　paper　utilizes　the　intrinsic　tensor　sparsity　model　and　integrates　super-resolution(SR)　into　a　unified　light　field　denoising　method　based　on　tensor　operation.　Avoiding　vectorization,　we　make　full　use　of　correlation　of　light　field.　By　exploiting　SR　method,　we　avoid　sub-pixel　mis-alignment　in　the　searching　process　of　similar　patch.　Experimental　results　validate　that　our　proposed　method　outperforms　the　state-of-art　methods　in　terms　of　both　objective　and　subjective　quality　on　the　HCI　light　field　old　dataset.　©　2020　IEEE.