A sealing and inflating assembly includes a piston slidably engaged in a cylinder housing and coupled to a motor with a piston rod for forming an air compressor, an outlet tube extended from the cylinder housing and having an outlet port, and a tire repairing container for receiving a sealing preparation and having an upper coupler for detachably attaching to the outlet port of the outlet tube and having a lower opening coupled to a nozzle for easily and quickly coupling the outlet tube of the air compressor to an inflatable object and for quickly repairing the inflatable object, and for quickly inflating the inflatable object by disengaging the tire repairing container from the outlet tube of the air compressor.