A honeycomb filter (20, 40) for trapping and removing solid components contained in a fluid, the honeycomb filter (20, 40) comprising: a plurality of porous partition portions each forming a cell, the cell being open at one end and closed at the other end and serving as a flow path of the fluid; and a trapping layer for trapping and removing the solid components contained in the fluid, the trapping layer being disposed on each of the partition portions, wherein the partition portions have a thickness tp of 150 μm or more and 460 μm or less, and the trapping layer has an average thickness t Ave of 5 μm or more and 80 μm or less, characterized in that: a film thickness ratio Y 1 of a downstream thickness t 1 to an up- and mid-stream thickness t hm satisfies the relationship of the formula, wherein t h denotes the thickness of the trapping layer in an upstream region of the honeycomb filter, t m denotes the thickness of the trapping layer in a midstream region of the honeycomb filter, t 1 denotes the thickness of the trapping layer in a downstream region of the honeycomb filter, and t hm denotes the mean value of the upstream thickness t h and the midstream thickness t m, wherein the upstream region, midstream region and downstream region each occupy 5 % of the total length of the honeycomb filter (20, 40) anterior and posterior to: a location corresponding to 20 % of the total length of the honeycomb filter (20, 40) from an upstream end face in the flowpath direction, for the upstream region; a location corresponding to 50 % of the total length of the honeycomb filter (20, 40) from the upstream end face in the flowpath direction, for the midstream region; a location corresponding to 20 % of the total length of the honeycomb filter (20, 40) from a downstream end face in the flowpath direction, for the downstream region, a film thickness ratio Y 2 of a maximum thickness t max to an average thickness t Ave satisfies the relationship of the formula, wherein t max denotes the maximum thickness of the trapping layer, and t Ave denotes the average thickness of the trapping layer, and the hydraulic diameter HD in of the cell on the inlet side satisfies the relationship of the formula. − 4 / 375 ⋅ t Ave + 2.05 ≤ Y 1 ≤ − 17 / 375 ⋅ t Ave + 10.23 Y 2 ≤ − 1 / 15 ⋅ t Ave + 8.33 0.95 ≤ HD in ≤ 2.0 a plurality of porous partition portions each forming a cell, the cell being open at one end and closed at the other end and serving as a flow path of the fluid; and a trapping layer for trapping and removing the solid components contained in the fluid, the trapping layer being disposed on each of the partition portions, wherein the partition portions have a thickness tp of 150 μm or more and 460 μm or less, and the trapping layer has an average thickness t Ave of 5 μm or more and 80 μm or less, a film thickness ratio Y 1 of a downstream thickness t 1 to an up- and mid-stream thickness t hm satisfies the relationship of the formula, wherein t h denotes the thickness of the trapping layer in an upstream region of the honeycomb filter, t m denotes the thickness of the trapping layer in a midstream region of the honeycomb filter, t 1 denotes the thickness of the trapping layer in a downstream region of the honeycomb filter, and t hm denotes the mean value of the upstream thickness t h and the midstream thickness t m, wherein the upstream region, midstream region and downstream region each occupy 5 % of the total length of the honeycomb filter (20, 40) anterior and posterior to: a location corresponding to 20 % of the total length of the honeycomb filter (20, 40) from an upstream end face in the flowpath direction, for the upstream region; a location corresponding to 50 % of the total length of the honeycomb filter (20, 40) from the upstream end face in the flowpath direction, for the midstream region; a location corresponding to 20 % of the total length of the honeycomb filter (20, 40) from a downstream end face in the flowpath direction, for the downstream region, a film thickness ratio Y 2 of a maximum thickness t max to an average thickness t Ave satisfies the relationship of the formula, wherein t max denotes the maximum thickness of the trapping layer, and t Ave denotes the average thickness of the trapping layer, and the hydraulic diameter HD in of the cell on the inlet side satisfies the relationship of the formula. − 4 / 375 ⋅ t Ave + 2.05 ≤ Y 1 ≤ − 17 / 375 ⋅ t Ave + 10.23 Y 2 ≤ − 1 / 15 ⋅ t Ave + 8.33 0.95 ≤ HD in ≤ 2.0