The invention relates to an intelligent sedimentation tank good in mud scraping. The sedimentation tank comprises a body, a mud scraping mechanism, a water inlet groove, a water outlet groove and a mud bucket; the mud scraping mechanism comprises a shell, a mud scraping plate and a cleaning mechanism, the cleaning mechanism comprises a fixed plate, a mobile assembly and a cleaning assembly, the mobile assembly comprises a second motor, a second driving shaft, a driving gear and a moving frame, the cleaning assembly comprises a water spray pipe, a transmission rod and a cleaning brush, and a central control unit comprises a central control module, a motor control module, a water spray control module, a wireless communication module, a voice control module, a display control module, a key control module, a status indication module and a working power supply module. According to the intelligent sedimentation tank good in mud scraping, residual sludge is effectively cleaned away through the cleaning assembly, the cleaning effect is improved, and the sedimentation tank mud scraping effect is improved; all the intelligent modules are added into the sedimentation tank, so that intelligent operation of the sedimentation tank is greatly improved, and the practicability is improved.