To provide a pressing film for filter press improved in risk of early damaging in the vicinity of a passage hole to attain sufficient durability.

In the elastic material pressing film for filter press having an outer peripheral part 2 liquid-tightly bonded to a receive substrate, and the passage hole 3 passing a pressing object fluid subjected to throttling due to elastic swelling deformation by supplying a pressurized fluid between it and the receive substrate, a reinforced part 20 reinforced by a leno-woven fiber 19 is disposed on a surrounding part 3a of the passage hole 3, and the fiber density of the leno-woven fiber 19 is set to be denser as it approaches a core part 20a of the reinforced part 20.