The invention discloses a multifunctional head-mounted stereo earphone comprising an earphone frame, a right earphone is fixedly mounted at one end of the earphone frame; a left earphone is fixedly mounted at the other end of the earphone frame; a main microphone and a charging interface are arranged on the outer surface of the front end of the left earphone. The main microphone is located below the charging interface, a left earmuff is fixedly installed on the outer surface of one side of the left earphone, a buzzer is fixedly installed on the outer surface of the other side of the left earphone, and a noise reduction microphone and a standby audio interface are arranged on the outer surface of the front end of the right earphone. The utility model relates to a multifunctional head-mounted stereo earphone. and the buzzer, the standby audio interface and the noise reduction microphone are arranged, so that buzzing can be generated when the electric quantity of the battery in the earphone is too low, wired connection can be continuously realized when the main audio interface fails, the environmental noise in the communication process can be effectively reduced, and the earphone is suitable for different work and brings a better use prospect.