To technically easily and inexpensively provide a printing plate having a plate-depth of a plurality of types, particularly three types or more on a same substrate printing plate corresponding to a printing pattern dimension, in the manufacturing of a printing plate for manufacturing a liquid crystal color filter having a high display quality, with respect to a manufacturing method for an intaglio to be used for manufacturing the liquid crystal color filter by a reversal printing method.

In the printing plate formed by changing the recessed shape depth of the intaglio for reversal printing to a plurality of steps according to the dimension/shape of patterns, the printing plate is subjected to both a wet treatment and a sandblast treatment to form recessed shapes.