<p>The quantum Mpemba effect, an anomalous relaxation phenomenon, has recently attracted much attention. However, how various types of noise, which are ubiquitous in real systems, may affect the quantum Mpemba effect remains unknown. Here, we address this gap by constructing a general dynamical framework for finite-dimensional open quantum systems under random telegraph noise. We identify a mechanism for the quantum Mpemba effect whereby noise-induced deceleration of the relaxation process in typical initial states can either induce or suppress the effect. This result underscores the potential of noise-traditionally viewed as disruptive-as a tool for manipulating relaxation pathways in quantum systems. Moreover, this mechanism leads to a counterintuitive effect—the decoherence rate may be slowed down by noise.</p>