The invention discloses a tea leaf rehydration stirrer. The stirrer comprises a stirring cylinder (1), a stirring shaft (2) and multiple stirring vanes (3) fixedly connected with the stirring shaft (2), the upper portion of the stirring cylinder (1) is provided with a feeding opening (4), the lower portion of the stirring cylinder (1) is provided with a discharging device (5), a waterway control device (6) used for sprinkling water is also arranged in the stirring cylinder, the multiple stirring vanes (3) comprise a scraping vane (31), a middle portion stirring vane (32) and an external stirring vane (33), the discharging device is arranged on the sidewall of the lower portion of the stirring cylinder (1) outside the scraping vane (31), the stirring height of the middle portion stirring vane is less than that of the external stirring vane, and the stirring radius of the middle portion stirring vane is less than that of the external stirring vane. The stirring vanes in the stirring cylinder have different stirring radiuses and different stirring heights, so loose tea leaves are uniformly rehydrated; and the rehydrated loose tea leaves are thoroughly discharged from the discharging device under the action of the scraping vane, so uncleanness and material sticking phenomena caused by sticking of the tea leaves to the stirring vanes and the cylinder wall are avoided.