The utility model discloses an experimental device for mud dipes stratum formation sludge -biofilm among simulation slurry shield, the device is including the PMMA pipe way, mud pressure load system and the stratum pore water pressure monitoring system that are arranged in simulating the slurry shield studio, the pore water pressure that lays in saying with PMMA pipe through pore water pressure meter wire of pore water pressure monitoring system count and be connected, mud pressure load system says for PMMA pipe that interior mud provides drive power from the other end that PMMA pipe said. The utility model discloses forming the sludge -biofilm in -process when ingressing the stratum to mud and respectively supervising the measurement parameter and monitor, parameter change rule is respectively monitored in assay, and then carries out assay to the sludge -biofilm quality that forms in the experimentation, and it influence the factor that high quality sludge -biofilm formed among the slurry shield to find out, steadily provides reliable foundation for guaranteeing the excavation face in the slurry shield work progress.