This study investigates the preparation, characterization, and catalytic activity of a novel palladium-doped copper molybdate polyoxometalate (Pd@CuMoO₄). Using a mere 19 ppm of palladium, Pd@CuMoO4 demonstrated excellent yields in both Suzuki-Miyaura and Sonogashira-Hagiwara coupling reactions of aryl halides with boronic acids and alkynes, respectively. The synergistic effects between the different metals in this catalyst were confirmed to be responsible for its high catalytic performance. Additionally, Pd@CuMoO₄ was successfully recovered and recycled multiple times in the Suzuki-Miyaura reaction with minimal loss of activity. The structural integrity of the reused catalyst was evaluated through various analytical techniques.