The invention provides a sweeping robot which comprises a shell, a draught fan assembly, an air inlet structure and an air outlet structure, the draught fan assembly, the air inlet structure and the air outlet structure are arranged in the shell; the draught fan assembly comprises a draught fan, the air outlet structure comprises an air outlet channel and an air channel air outlet, and air is sucked in from the air inlet structure, passes through the draught fan, enters the air outlet structure and is finally exhausted from the air channel air outlet. The draught fan and the air channel air outlet are arranged on the two sides of the shell respectively, the air outlet channel is arranged between the fan and the air channel air outlet, and the draught fan is communicated with the air channel air outlet through the air outlet channel. According to the sweeping robot, the draught fan and the air channel air outlet are located in the two sides of the shell correspondingly, and superposition and amplification of noise are avoided; meanwhile, the air outlet channel is located between the draught fan and the air channel air outlet, the space between the draught fan and the two sides, where the air channel air outlet is located, of the shell is utilized, and the air outlet channel is prolonged on the premise that the size of the sweeping robot is not increased; and the length of the air outlet channel is increased, so that the noise generated when air flows in the air outlet channel is very low.