Oil leakage prevention structure and atomization device

The utility model provides an oil leakage prevention structure and an atomization device, the oil leakage prevention structure comprises an atomization assembly and a shell assembly, the atomization assembly comprises an atomization rod, the atomization rod is provided with an atomization cavity, and the atomization rod is provided with at least one oil passing hole communicating with the atomization cavity. The shell assembly comprises a shell and a first sealing piece, the shell is provided with an inner cavity, the atomization assembly and the first sealing piece are arranged in the inner cavity of the shell, an oil storage space is formed between the shell assembly and the atomization rod, and the first sealing piece seals the oil passing hole during oil injection. The first sealing piece moves to the area outside the oil passing hole along the atomization rod in the cover pressing process, and the oil passing hole communicates with the oil storage space. According to the oil leakage prevention structure,