The invention relates to in-canal type earphones, which comprises a housing, an electro acoustic converter, a sound output pipe and earplugs, wherein the electro acoustic converter is arranged in the housing; the sound output pipe extends outwards from the front surface of the housing; the sound output pipe is provided with a first channel communicated with the interior of the housing; the first channel is used for receiving the sound wave emitted by the electro acoustic converter; the sound output pipe is provided with a second channel communicated with the first channel, wherein the cross section of the second channel is different from the cross section of the first channel; the second channel is used for attenuating the sound wave emitted by the electro acoustic converter and broadcasting the sound wave outwards; and the earplugs are sheathed on the sound output pipe and are used for being placed into the external auditory canals of a wearer.