The Beijing spectrometer III (BESIII) is a high precision detector located at the Beijing electron positron collider II (BEPCII). After running ten years, the BESIII sub-systems are suffering from the aging problems that lead to a performance degradation. In order to ensure the study of the important physics topics in tau-charm energy region that can be further explored at the BESIII, the BESIII experiment has received several upgrades. We report the upgrades of the BESIII, including the inner part of the drift chamber, the end cap of the time-of-flight system and the valve box of the superconducting magnet.
