Atomizer and electronic atomization device

The utility model provides an atomizer and an electronic atomization device.The atomizer comprises a shell, a liquid storage cavity, an atomization assembly and a support are arranged in the shell, the liquid storage cavity is used for storing a liquid matrix, and the atomization assembly is in fluid communication with the liquid storage cavity and used for receiving, heating and atomizing part of the liquid matrix located in the liquid storage cavity to generate aerosol; the support is provided with a holding space, at least part of the atomization assembly is contained or held in the holding space, and meanwhile, the support further defines a liquid guide channel which is used for providing a path for the liquid matrix in the liquid storage cavity to flow to the atomization assembly. The atomizer can further comprise an air channel, the air channel is used for providing a flowing path for air to enter the liquid storage cavity, and the air channel comprises a first part penetrating from the maintaining spac