The invention discloses a non-cotton atomizer and an
electronic cigarette. The non-cotton atomizer comprises an atomization sleeve, an
oil storage cavity sealed inside the atomization sleeve, an oil blocking sleeve fixed on the inner wall of the atomization sleeve and an atomization
assembly arranged inside the oil blocking sleeve and capable of moving in the axial direction relative to the oil blocking sleeve, wherein the atomization
assembly is provided with an oil
injection port; the oil
injection port can be opened or closed when the atomization
assembly moves to control the entering of tobacco
tar, and is communicated with the
oil storage cavity. According to the invention, the oil
injection port can be opened or closed through enabling the atomization assembly to move in the axial direction, so that when the non-cotton atomizer is in use, tobacco
tar can be injected into the atomization assembly from the
oil storage cavity to be atomized; when the non-cotton atomizer is not in use or is transported, the oil injection port can be closed, so that the tobacco
tar leakage is avoided; therefore, the non-cotton atomizer is convenient to operate, can effectively prevent oil leakage, and improves the consumption experience.