A lighter with an
alcohol testing function comprises a shell, an end cover, an ignition unit and an
alcohol testing unit. A containing cavity and an
air cavity are formed in the shell, and an air blowing hole communicating the inside and outside of the
air cavity is formed in the
tail end of the shell. The end cover is arranged at the
tail end of the shell to cover or open the blowing hole; the ignition unit is installed in the containing cavity, and the ignition end of the ignition unit extends and penetrates through the shell to the outside. The
alcohol testing unit is mounted in the accommodating cavity, and the detection end of the alcohol testing unit extends into the
air cavity; under the normal condition, the end cover covers the air blowing hole, and a user can normally use the ignition unit; when an alcohol test is carried out, the end cover is moved to open the air blowing hole, air is blown into the air cavity through the air blowing hole, the
gas concentration in the air cavity is detected by the detection end, and the
alcohol intake degree of a user can be judged; after the test is finished, the end cover covers the air blowing hole again; therefore, due to the design of the end cover, long-term
exposure of the
tail end of the shell can be avoided, the blow hole can be prevented from being contaminated by
dirt, the use experience is improved, dust can be prevented from entering the air cavity to be attached to the detection end, and the detection precision is guaranteed.