Abstract: Combined Qt programming with two-dimensional finite-difference forward modeling, we developed a software that enables real-time forward display and support output seismic forward results in png or segy file formats. Before programming, the two-dimensional acoustic wave equation, the 2nd Clayton_Engquist_majda absorption boundary condition and the Ricker wavelet were discredited in order to meet requirements. During the programming process, the influence of the full-waveform and half-wavelet wavelet on the forward performance was learned and a solution was proposed. At the same time, the idea of real-time display of wave field is given and validated, and the addition of gain parameters improved the contrast and forward performance of the wave field.