The utility model discloses an efficiency of flat soil of foundation ditch is improved excavating gear, including the excavator, the bucket of excavator and each dig and are provided with fixed connector between the tooth, on the connecting portion that dig tooth and bucket were fixed in to fixed connector's upper end, the lower extreme was connected with a steel sheet jointly, the steel sheet passes through fixed connector fixes dig the bottom surface of tooth, the width of steel sheet with the width of bucket is unanimous, the outside of steel sheet with dig the terminal parallel and level of tooth. The utility model discloses in at fixed steel sheet in bottom surface that digs the tooth of excavator, at flat native in -process, owing to there is not soil between tooth mark, only need a small amount of manual work can accomplish the clearance, on one side be unearthed, level on one side, the efficiency of construction obtains great improvement, simultaneously, the steel sheet is fixed on digging the tooth through the screw rod, has to dismantle conveniently, and high advantage is rateed to cyclic utilization, and in the work progress, spare part damages in addition, can in time change according to the model, saves production and construction cost, has spreading value.