The present invention provides an ear probe capable of improving detection precision of probe sound input to a microphone, and an impedance audiometer including the ear probe. The ear probe (1) is used for the impedance audiometer used in auditory ossicle muscle reflex inspection, and the ear probe (1) comprises: an opening (8), a microphone (5), a transmission path (14) from the opening (8) to the microphone (5), and an acoustical filter (15) disposed on the transmission path (14) and used for reducing sound pressure of a stimulation sound component before the stimulation sound component arriving the microphone. The acoustical filter (15) comprises a sound volume (7) connected with a pipe (13) and an acoustic impedance pipe (6). The cut-off frequency of the acoustical filter (15) is a value more than 226Hz and less than 500Hz.
Ear probe and impedance audiometer