The invention relates to 200L wastebin pouring device and method. The device comprises a seal silo, a turnover mechanism, a silo wall vibrator, a wastebin A, a wastebin B, a lifting mechanism, a funnel and a seal silo inlet. The method comprises the following steps of (1) placing a 200L empty wastebin A under a hopper of the seal silo, installing soft connection between a discharge hole and the wastebin A, and avoiding powder from overflowing during a waste pouring process; (2) conveying a 200L carbon steel wastebin B onto a platform of a lifting mechanism on the bottom part of an automatic pouring device through a bin holding forklift, and manually opening a bin cover on the wastebin B; and (3) starting the wastebin lifting mechanism, enabling the platform to drive the 200L carbon steel wastebin B to lift up, and switching off the lifting mechanism when the lifting platform and the seal silo are closed. By adopting the device and the method provided by the invention, the barreled clean and polluted sandy soil pouring simulation operation is used for verifying that the automatic pouring device conforms to the mechanical performance and the sealing performance, and the requirement of the barreled low-and-intermediate level radioactive waste pouring operation can be met.