<p>We investigate nematic response of FeTe using near-infrared pump-probe reflectometry. Time-resolved near-infrared reflectivity changes show transient electronic responses superimposed with coherent oscillations of Te atoms. While the electronic response is isotropic at room temperature, the polarization dependent measurements reveal clear anisotropy in the electronic signal in the antiferromagnetic state at low temperature. The frequency and width of coherent oscillations also manifest the phase transition. Temperature evolution of the electronic signal shows nematic fluctuations persist even in the tetragonal structure above <i>T</i>_N. This study suggests that investigations on anisotropic response of FeTe in the transient reflectivity changes provide clear evidence of nematic order, which should help us understand the ground state and phase transition of iron-based superconductors better.</p>