The invention discloses a wind wheel resin bearing polishing device and a bearing machined by using the same. The wind wheel resin bearing polishing device comprises a mounting frame and a linear oscillation feeder, and a feeding mechanism capable of performing X-axis and Y-axis bidirectional displacement to quantitatively convey and feed is arranged at the top of the mounting frame and corresponds to a discharging track of the linear oscillation feeder, a positioning mechanism with the functions of air blowing, scrap blowing, air exhausting, scrap discharging, polishing and positioning is fixed to the position, corresponding to the discharging direction of the feeding mechanism, of the mounting frame, a polishing mechanism capable of vertically moving to polish a bearing shaft hole inputinto the positioning mechanism is fixed to the top of the mounting frame, a discharging through hole is formed in the position, corresponding to the discharging position of the positioning mechanism,of the top of the mounting frame, and a pipeline is connected to the discharging through hole and used for collecting machined bearings. According to the wind wheel resin bearing polishing device, a to-be-machined bearing can be well arranged, positioning, feeding and polishing are conducted, and during polishing, scraps on a polishing base are pumped away in time in cooperation with vacuum pumping, so that the higher bearing inner wall glossiness is met.