A portable ultraviolet excited fluorescence intensity detector configured to carry out quantitative fluorescence detection of a disposable hygiene product's raw materials comprising a hot-melt adhesive and a non-hot-melt-adhesive-type base material, wherein the detector comprises a housing, wherein a detection opening is formed in a planar sidewall of the housing in which an ultraviolet emitting light path, a first receiving light path and a second receiving light path are defined such that these light paths are coplanar, wherein after the portable ultraviolet excited fluorescence intensity detector is placed on a planar substrate to be tested, the ultraviolet emitting, first receiving and second receiving light paths converge at a point in a surface of the planar substrate, wherein an ultraviolet source is arranged in the ultraviolet emitting light path and is adapted to emit ultraviolet light towards the point and excite fluorescence there, a first sensor and a second sensor are arranged in the first receiving light path and the second receiving light path respectively such that the sensors can be selectively operated, wherein the first sensor is designed to convert light, whose wavelength is between 420 nm and 480 nm, into electric signals proportional to the light intensity, the second sensor is designed to convert light, whose wavelength is between 480 nm and 760 nm, into electric signals proportional to the light intensity, and wherein a first filter device and a second filter device are allocated to the first and second sensors (921, 931) respectively such that the excited fluorescence can be received by the first and second sensors (921, 931) through the first and second filter devices respectively, wherein the first filter device comprises an ultraviolet filter enabling ultraviolet light emitted from the ultraviolet source to be filtered out and a first fluorescence filter enabling light, whose wavelength is greater than 480 nm, to be filtered out, and the excited fluorescence passes through the ultraviolet filter and the first fluorescence filter in this order, wherein the second filter device comprises an ultraviolet filter enabling ultraviolet light emitted from the ultraviolet source to be filtered out and a second fluorescence filter enabling light, whose wavelength is less than 480 nm, to be filtered out, and the excited fluorescence passes though the ultraviolet filter and the second fluorescence filter in this order, wherein the ultraviolet light emitted from the ultraviolet source has a wavelength in the range between 320 nm and 400 nm, preferably of 365 nm. wherein after the portable ultraviolet excited fluorescence intensity detector is placed on a planar substrate to be tested, the ultraviolet emitting, first receiving and second receiving light paths converge at a point in a surface of the planar substrate, wherein an ultraviolet source is arranged in the ultraviolet emitting light path and is adapted to emit ultraviolet light towards the point and excite fluorescence there, a first sensor and a second sensor are arranged in the first receiving light path and the second receiving light path respectively such that the sensors can be selectively operated, wherein the first sensor is designed to convert light, whose wavelength is between 420 nm and 480 nm, into electric signals proportional to the light intensity, the second sensor is designed to convert light, whose wavelength is between 480 nm and 760 nm, into electric signals proportional to the light intensity, and wherein a first filter device and a second filter device are allocated to the first and second sensors (921, 931) respectively such that the excited fluorescence can be received by the first and second sensors (921, 931) through the first and second filter devices respectively, wherein the first filter device comprises an ultraviolet filter enabling ultraviolet light emitted from the ultraviolet source to be filtered out and a first fluorescence filter enabling light, whose wavelength is greater than 480 nm, to be filtered out, and the excited fluorescence passes through the ultraviolet filter and the first fluorescence filter in this order, wherein the second filter device comprises an ultraviolet filter enabling ultraviolet light emitted from the ultraviolet source to be filtered out and a second fluorescence filter enabling light, whose wavelength is less than 480 nm, to be filtered out, and the excited fluorescence passes though the ultraviolet filter and the second fluorescence filter in this order, wherein the ultraviolet light emitted from the ultraviolet source has a wavelength in the range between 320 nm and 400 nm, preferably of 365 nm.