Artificial structures known as metasurfaces are used extensively to control the propagation, phase, amplitude, and polarization of light by finely adjusting the characteristics of electromagnetic waves on a sub-wavelength scale. In this work, we suggest a Bound States in the Continuum (BIC) structure based on a metallic metasurface. We were able to achieve a notable BIC peak at a frequency of 0.8217 terahertz (THz) by carefully modifying the metallic structures utilizing CST and COMSOL tools.We discovered through multi-level expansion analysis that the electric dipole (ED) is primarily responsible for this structure's resonant characteristic. We created and put into operation an image system that operates at 0.8217 THz by utilizing the features of BIC. According to experimental data, the imaging system offers outstanding sensitivity and resolution, indicating great promise for terahertz imaging. In addition to offering fresh concepts for the creation of metasurface-based BIC structures, our research gives useful references for the advancement of high-performance terahertz imaging technologies.