An atomization assembly and electronic cigarette are provided. The atomization assembly is used for combining with a battery assembly to form an electronic cigarette. The atomization assembly comprises an outer sleeve (1), and a suction nozzle cover (2) inserted at one end of the outer sleeve (1). A sealing component (3), which is fixedly connected to the suction nozzle cover (2), is provided and protrudes radially from a circumferential outer side wall of the suction nozzle cover (2). The hardness of the sealing component (3) is smaller than that of the suction nozzle cover (2). The suction nozzle cover (2) is integrated with the sealing component (3) into one piece by double-shot molding, so that the suction nozzle cover (2) has a sealing function. A gap between the engagement surfaces of the suction nozzle cover (2) and the outer sleeve (1) is sealed, thereby preventing leakage.
