The invention provides a paint removal device for waste paint buckets, the structure of which includes a paint bucket workbench 1, a paint bucket fixing frame 2, a four-claw chuck 3, a paint bucket 4, a paint scraper holder 5, a paint scraper 6, a brush Handle control motor 7, brush workbench 8, linear guide rail screw slide module 9, paint bucket fixing frame control motor 10, brush cover 11, electric push rod 12, electric push rod cover 13, brush 14, brush handle 15, Pressure Washer 16. The telescopic movement of the paint brush is realized through the electric push rod, the feed movement between the paint brush and the paint bucket is realized through the linear guide screw slide module, and the paint removal function is realized through the relative rotation between the paint brush, the paint bucket and the scraper. The paint removal device has the advantages of compact structure, high paint removal efficiency and environmental friendliness, and can be mass-produced and used in industry.