The utility model provides a hydraulic pressure spiral top for boats and ships segmentation is supported, including a side or the open base of two opposite flanks, the lateral wall outside of base sets up handling eye plate, the inside hydraulic means that places of base, the round hole is seted up at the center at base top, set nut sets up a plurality of round holes in the side to cooperation setting can make the set nut card consolidate in the positioning handle of base top round hole top, ball head screw is worn to establish in the set nut center, the roof that the base was passed to ball head screw's bottom is being adorned with hydraulic pressure and is being met, the nut roof is placed to ball head screw's head, and the bottom of nut roof is provided with the head complex ball grooves with ball head screw. The utility model discloses a hydraulic means adjusts ball head screw's lift, and degree of automation is high, the convenient dismantlement, and labour saving and time saving, the security is higher, the utility model discloses a but nut roof rotation regulation, the flexibility is higher, is applicable to multiple structures such as flat segmentation, line type segmentation, and application scope is wide, and the practicality is strong.