A tobacco roaster includes a high frequency heating module and a pushing assembly. The high frequency heating module includes a metal cup and a magnetic induction coil. The metal cup is disposed in the magnetic induction coil. When alternating current flows through the magnetic induction coil, an eddy current effect is formed in the metal cup and the metal cup is heated. The pushing assembly includes a push rod disposed below the metal cup. The push rod is movable to push the metal cup out of the tobacco roaster.