The invention relates to a hydrogen burner, which comprises a central channel in an axis, a middle channel arranged outside the central channel and an outer-ring channel arranged in the middle channel, wherein the front end of the burner is provided with a stable burning chamber; the front end of the outer-ring channel is provided with guide blades which are distributed in the same form as turbine blades; and the middle channel is provided with a plurality of rows of annularly distributed pores besides the guide blades so as to be communicated with the outer-ring channel. The hydrogen burner of the invention takes the inflammable and low density characteristics of hydrogen into full consideration, has a reasonably arranged flow field structure, ensures that the hydrogen burns fully and that the flame length is kept within a reasonable range, and prevents backfire under a low-load condition. The hydrogen burner can control the mixing effect of the air and the hydrogen reasonably and ensure that the burning flame is in a reasonable range after the hydrogen is jetted into a hearth, thereby ensuring the safe and stable operation of a boiler.