The application discloses a side plug type rolling bearing, which comprises an outer ring, an inner ring, a plurality of rolling bodies, a side plug, a first blocking part and a second blocking part. The outer ring and the inner ring are coaxial, a chamber is formed between the outer ring and the inner ring, the outer ring is provided with a channel in radial direction to communicate with the chamber, the outer ring forms a side wall to surround the channel, each rolling body enters the chamber through the channel, the side plug is arranged in the channel in axial direction, the first blocking part is arranged in the channel to tightly adhere the side plug and the side wall, the first blocking part is formed by solidifying liquid material with high fluidity and low solidification shrinkage, thereby preventing lubricating material from leaking out through the channel, the second blocking part is arranged in the channel to tightly adhere the first blocking part and the side wall, and the second blocking part supports the first blocking part.