sPHENIX MVTX Detector Commissioning at Brookhaven National Laboratory

sPHENIX is a state-of-the-art detector for jet and heavy flavor physics in heavy-ion collisions and going to take data at Relativistic Heavy Ion Collider in 2023. The three-layer Monolithic-Active-Pixel-Sensor (MAPS) based vertex detector (MVTX), a copy of the inner three layers from the ALICE experiment at the Large Hadron Collider, will serveas the innermost tracking system of the sPHENIX experiment. The sPHENIX MVTX detector has excellent position resolution and vertexing capabilities, which is crucial for heavy flavor physics studies. Currently, the MVTX commissioning is ongoing at BNL. Tasks such as hardware test, online system, detector simulation, and alignment studies are undertaking. MVTX will be installed to the sPHENIX detector from Jan to Feb 2023 right before data taking. In the presentation. we will report the current status of sPHENIX commissioning and the plan before data taking.