The hydrostatic pressure tolerance of spherical-cymbal transducer was investigated. Theoretical Von Mises stress analysis was carried out using finite element method. Effects of cavity geometry and material selection on limits pressure were evaluated. It shows that cavity depth, end-cap thickness and end-cap materials have strong effects on pressure tolerance of spherical-cymbal transducers. The comparison analysis indicates that the pressure tolerance of spherical-cymbal transducers with reference dimensions is higher than that of traditional cymbal transducers.