A cutting tool, comprising: a rake surface; a flank surface; a cutting edge located along an intersecting ridge of the rake surface and the flank surface; a base body; and a coating layer located on a surface of the base body; wherein the coating layer comprises at least a titanium carbonitride layer and an aluminum oxide layer having an α-type crystal structure, and the titanium carbonitride layer is located closer to the base body than the aluminum oxide layer; characterised in that: wherein, of peaks related to Al 2 O 3 appearing in a wavenumber range of 416-425 cm -1 of a Raman spectrum obtainable as disclosed in the description by setting the irradiation region of an Ar laser beam having a wavelength of 514.53 nm to 2.0 μmφ, or, when the aluminum oxide layer has a thickness of 4.0 μm or less, by setting a diameter of the irradiation region to a half of the thickness of the aluminum oxide layer, and irradiating the aluminum oxide layer on a processed surface which was obtained by carrying out mirror finish of a cross section of the tool, including a flat portion of the flank surface, so that an end portion of the irradiation region corresponds to an end portion of the aluminum oxide layer; a measurement at a position being 100 μm away from the cutting edge of the rake surface is referred to as a rake surface-side position, and a measurement at a position being within 10 μm from the cutting edge of the rake surface is referred to as a cutting edge-side position, a first base body-side peak at the rake surface-side position is taken as "p1", a first surface-side peak at the rake surface-side position is taken as "q1", a second base body-side peak at the cutting edge-side position is taken as "p2", and a second surface-side peak at the cutting edge-side position is taken as "q2", wherein the first surface-side peak "q1" is located at a wavenumber on a lower angle side than the first base body-side peak "p1" and a difference between a wavenumber of the first surface-side peak "q1" and a wavenumber of the first base body-side peak "p1" is 1.0-3.0 cm -1; wherein the peak "q1" is located at a wavenumber on a lower angle side than the peak "q2", a difference between a wavenumber of the peak "q1" and a wavenumber of the peak "q2" is 0.5-3.0 cm -1; wherein the peak "q2" is located on a lower angle side than the peak "p2", a difference between a wavenumber of the peak "p2" and a wavenumber of the peak "q2" is 0.5-3.0 cm -1; and wherein the peak "p1" is located on a lower angle side than the peak "p2", a difference between a wavenumber of the peak "p1" and a wavenumber of the peak "p2" is less than 1.0 cm -1. a rake surface; a flank surface; a cutting edge located along an intersecting ridge of the rake surface and the flank surface; a base body; and a coating layer located on a surface of the base body; wherein the coating layer comprises at least a titanium carbonitride layer and an aluminum oxide layer having an α-type crystal structure, and the titanium carbonitride layer is located closer to the base body than the aluminum oxide layer; characterised in that: wherein, of peaks related to Al 2 O 3 appearing in a wavenumber range of 416-425 cm -1 of a Raman spectrum obtainable as disclosed in the description by setting the irradiation region of an Ar laser beam having a wavelength of 514.53 nm to 2.0 μmφ, or, when the aluminum oxide layer has a thickness of 4.0 μm or less, by setting a diameter of the irradiation region to a half of the thickness of the aluminum oxide layer, and irradiating the aluminum oxide layer on a processed surface which was obtained by carrying out mirror finish of a cross section of the tool, including a flat portion of the flank surface, so that an end portion of the irradiation region corresponds to an end portion of the aluminum oxide layer; a measurement at a position being 100 μm away from the cutting edge of the rake surface is referred to as a rake surface-side position, and a measurement at a position being within 10 μm from the cutting edge of the rake surface is referred to as a cutting edge-side position, a first base body-side peak at the rake surface-side position is taken as "p1", a first surface-side peak at the rake surface-side position is taken as "q1", a second base body-side peak at the cutting edge-side position is taken as "p2", and a second surface-side peak at the cutting edge-side position is taken as "q2", wherein the first surface-side peak "q1" is located at a wavenumber on a lower angle side than the first base body-side peak "p1" and a difference between a wavenumber of the first surface-side peak "q1" and a wavenumber of the first base body-side peak "p1" is 1.0-3.0 cm -1; wherein the peak "q1" is located at a wavenumber on a lower angle side than the peak "q2", a difference between a wavenumber of the peak "q1" and a wavenumber of the peak "q2" is 0.5-3.0 cm -1; wherein the peak "q2" is located on a lower angle side than the peak "p2", a difference between a wavenumber of the peak "p2" and a wavenumber of the peak "q2" is 0.5-3.0 cm -1; and wherein the peak "p1" is located on a lower angle side than the peak "p2", a difference between a wavenumber of the peak "p1" and a wavenumber of the peak "p2" is less than 1.0 cm -1.