The invention discloses an otorhinolaryngologic sputum aspirator. The otorhinolaryngologic sputum aspirator comprises a box and an aspirator body, a partition plate is arranged in a top portion of aninner cavity of the box, a positive and negative motor is fixedly connected with the right side of a top portion of the partition plate, an output end of the positive and negative motor is fixedly connected with a worm, a turbine is meshed with a front surface of the worm, a threaded rod is arranged in an inner cavity of the turbine in a sleeved manner, a threaded block is connected with a surfaceof the threaded rod in a threaded manner, a fixed block is fixedly connected with the bottom of the threaded block, a motor is fixedly connected with the bottom of the fixed block, and an output endof the motor is fixedly connected with a stirring shaft. The otorhinolaryngologic sputum aspirator has the advantages that through cooperation of the box, the partition plate, the positive and negative motor, the worm, the turbine, the threaded rod, the threaded block, the fixed block, the motor, the stirring shaft and stirring blades in use, the problem that an existing sputum aspirator is difficult to clean after sputum aspiration is solved, practicability is improved, usage is facilitated for users, and popularization is worthwhile.