Placing support for marine diesel engine cylinder cover

The utility model relates to the technical field of diesel engine manufacturing, in particular to a placing support of a marine diesel engine cylinder cover. According to the placing support for the marine diesel engine cylinder cover, the diesel engine cylinder cover support can be synchronously adjusted, so that the maintenance work is safer. A placing support of a marine diesel engine cylinder cover comprises six supporting columns, a reinforcing frame and an adjusting mechanism, the reinforcing frame is connected among the supporting columns, the six supporting columns are connected into a whole through the reinforcing frame, and the adjusting mechanism for adjusting the height is arranged on the lower portions of the supporting columns. The rotating block is rotated to drive the synchronous wheel to rotate synchronously, so that the synchronous wheel drives the synchronous belt to rotate, the threaded rod rotates, the supporting column and the mounting column are adjusted up and down synchronously by rot