Abstract: The 3D block in LK area,Shandong is TZ zone and shallow water.Coal layers as target are shallower and seismic data is very complex.According to the seismic data characters and geological target in this area,many data processing technologies are researched including the SLS receiver secondary location,correction difference of shooting and receiving,Period-Varying Reverberation suppression,pre-stack time migration.One set of characteristic high-precision seismic data processing technology for shallow coal layer in Paralic Zone has been formed and achieved data are of high signal/noise ratio,high resolution and fidelity.