Honeycomb filter, and manufacturing method of the same

A manufacturing method of a porous honeycomb filter comprising:

• a kneaded material preparing step of preparing a kneaded material containing a cordierite forming raw material;
• a formed honeycomb body preparing step of forming the kneaded material to obtain a formed honeycomb body;
• a honeycomb structure preparing ep of firing the formed honeycomb body to obtain a porous honeycomb structure;
• and
• a plugging step of arranging plugged portions in one open end portion of each of predetermined cells of the porous honeycomb structure and the other open end portion of each of remaining cells,
• wherein the kneaded material preparing step includes at least one selected from the group consisting of an operation of adding 0.2 part by mass or more and 1.0 part by mass or less of lithium carbonate to 100 parts by mass of the cordierite forming raw material, an operation of adding 3.0 parts by mass or less of cerium oxide to 100 parts by mass of the cordierite forming raw material, an operation of adding 2.5 parts by mass or less of zirconium oxide to 100 parts by mass of the cordierite forming raw material, and an operation of adding 2.0 parts by mass or less of yttrium oxide to 100 parts by mass of the cordierite forming raw material.