The invention discloses a work area noise simulation method for seismic exploration forward modeling. The method comprises the following steps: obtaining detector coordinates of each detection point of a work area through a seismic acquisition and observation system; obtaining noiseless seismic forward modeling data by using a seismic forward modeling algorithm; arranging a station in a work areato collect random noise sample data; calculating a mean value and a variance of the random noise sample data of each station; performing interpolation to obtain a mean value and a variance of random noise at the detector of each detection point; generating random noise at the detector of each detection point; investigating the position of a noise source in a work area and arranging stations near the noise source to record active noise sample data; analyzing a characteristic value of active noise propagation; generating an active noise record at the detector of each detection point; and addingthe random noise and the active noise at the detector of each detection point to the seismic forward modeling data. Simulation noise conforming to noise characteristics of a work area is added into aseismic exploration forward modeling result, so that seismic forward modeling is closer to actual data.