Herein, a highly sensitive electrochemical sensing platform for the detection of carbendazim (CBZ), a commonly used pesticide was developed based on flake-like neodymium molybdate wrapped with multi-walled carbon nanotubes (Nd2Mo3O9/MWCNTs) composite. The Nd2Mo3O9/MWCNTs was prepared via a simple wet-chemical route, followed by a sonication process. In this composite system, flake-like Nd2Mo3O9 not only offers plentiful active sites, but also endows high specific surface area. Meanwhile, MWCNTs wrapping can effectively impede the aggregation tendency and enhance the structural stability of flake-like Nd2Mo3O9 as well as increase the conductivity of the composite. The Nd2Mo3O9/MWCNTs composites modified glassy carbon electrode (GCE) as electrochemical sensor displayed outstanding electrocatalytic activity towards the electroxidation of CBZ. Under the optimal operating conditions, the peak current was linearly related to the concentration of CBZ varying from 0.05 nM to 9.0 μM with a low detection limit of 0.016 nM. Furthermore, the proposed sensor was successfully used to detect CBZ in paddy water samples, and satisfactory recoveries were obtained.