The invention relates to an umbrella-type underwater stabilizing device capable of ascending, descending and transversely moving. The umbrella-type underwater stabilizing device comprises a wing expanding mechanism, a descending mechanism, an underwater stabilizing mechanism and a transverse-moving auxiliary ascending mechanism. The wing expanding mechanism controls different postures of the device; the descending mechanism assists thrust and guarantees that the device reaches any position in water; the underwater stabilizing mechanism solves the problem of shaking of the device under the multiple harsh conditions such as underwater sludge; and the transverse-moving auxiliary ascending mechanism solves the problems of device recovery, and movement and ascending thrust of a water surface device. The complex vertical-ascending-descending underwater device structure is assembled to be formed in simple and practical modes, the flexible control function is given to the underwater stabilizing device, the underwater stabilizing device beneficially supplements the structural design of underwater machine devices, and good market value and application prospects are achieved.