Bridge expansion joint anchoring area crack repairing structure

The utility model belongs to the technical field of building construction, and particularly relates to a bridge expansion joint anchoring area crack repairing structure which comprises a bridge floor, anchoring concrete and an expansion groove and further comprises a crack repairing device, and the crack repairing device comprises a base, a stirring and filling mechanism and a trowelling mechanism. According to the bridge expansion joint anchoring area crack repairing structure, the stirring and filling mechanism is arranged and comprises a stirring box, a first motor, a stirring shaft, a stirring rod, a cement pump, a folding pipeline and a nozzle, the first motor is started, and rotation of an output shaft of the first motor serves as driving force to drive the stirring shaft to rotate; and the cement pump conveys the cement in the stirring box into the spray nozzle through the folding pipeline, the cement is filled and coated on cracks in anchoring concrete through the spray nozzle, and the effect of autom