This　study　presents　a　weak　measurement　based　magnetic　field　imaging　method　and　system　that　utilizes　the　amplification　mechanism　of　weak　values　on　optical　rotation　and　the　magneto-optical　effect　to　visualize　magnetic　field　distributions.　Our　approach　enhances　optical　rotation　detection　precision　through　differential　measurements,　achieving　an　angular　resolution　of　2.57　×　10−5°　in　the　imaging　system.　This　weak-measurement　imaging　method　addresses　the　limitation　of　frequency-domain　weak　measurement　in　single-point　detection　that　loses　sample　details,　representing　the　realization　of　magnetic　field　imaging　based　on　weak　measurement.　In　addition,　this　method　has　the　advantages　of　a　simple　device　structure　and　high　sensitivity,　which　provides　an　approach　for　magnetic　field　imaging.　©　2025　Optica　Publishing　Group　under　the　terms　of　the　Optica　Open　Access　Publishing　Agreement.