A loader with a metering device is characterized by comprising a bucket, a force arm, a loader body and the metering device. The loader body is movably connected with the force arm, the bucket is movably connected with the force arm, a first linear distance exists between the connecting point of the bucket and the force arm and the front end of the bucket, and the metering device is arranged on the force arm and movably connected with the force arm; a second linear distance exists between the connecting point of the metering device and the force arm and the left end of the force arm; and the loader with the metering device can ensure that the weight of substances scooped up every time meets the standard, the appearing of the condition that the loader cannot bear the heavy loads is avoided, repairing and maintaining of the loader are facilitated, meanwhile, the phenomenon that the number of substances scooped up every time is too small, and consequently, the construction efficiency is low, and the construction period is long is avoided, the construction efficiency can be improved, and the construction period is shortened.