<p>The extensive applications of the laser thermal rock-breaking technology in the tunnel and underground engineering lead to the numerous studies on the dynamic hydraulic-thermo-poro-visco-elastic responses. However, the inherent nonlocal effects of deformation and heat transport in such condition are still not considered. To address such deficiency, this work develops the nonlocal hydraulic-thermo-poro-visco-elastic model based on Eringen’s stress gradient elasticity theory and the Guyer–Krumhansl (GK) heat conduction law. The newly established model is applied to investigate the transient impact responses of the temperature-dependent saturated cylindrical unlined tunnel subjected to the non-Gauss laser via the Laplace transformation associated with Kirchhoff-integral technique. The dimensionless results reveal that the thermal nonlocal parameter accelerates the propagation of temperature while reducing the poro-water pressure response. Meanwhile, the elastic strain gradient parameter lowers the stress peak and makes the displacement curves smoother.</p>