Underwater comprehensive measurement system

An underwater comprehensive measurement system comprises an over-water subsystem, an underwater subsystem and an over-water assisting subsystem, wherein the over-water subsystem communicates with theover-water assisting subsystem through ultra-intense Wi-Fi; the over-water subsystem communicates with the underwater subsystem through photoelectric transmission; the underwater subsystem can be stored inside the over-water subsystem so that the over-water assisting subsystem can integrally deploy and recover the over-water subsystem and the underwater subsystem; after the overall structure of the over-water subsystem and the underwater subsystem is deployed to a preset position, the underwater subsystem is detached from the over-water subsystem to submerge into the water for measurement; andthe over-water subsystem adjusts the submerging depth of the underwater subsystem in real time so that the underwater subsystem can submerge into a preset submerging depth. Since the over-water subsystem can adjust the submer