An apparatus for surface plasmon resonance imaging, comprising: a single light source module for emitting a broadband light beam; a spectral modulation module comprising a first bandwidth filter and a second bandwidth filter, wherein the spectral modulation module is arranged to receive the broadband light beam to generate a first bandwidth incident light beam and a second bandwidth incident light beam, respectively; a surface plasmon resonance sensing chip having a surface plasmon resonance wavelength, wherein the surface plasmon resonance sensing chip is arranged to receive the first bandwidth incident light beam and the second bandwidth incident light beam for correspondingly generating a first bandwidth plasmon resonance light beam and a second bandwidth plasmon resonance light beam; an imaging module configured to receive the first bandwidth plasmon resonance light beam and the second bandwidth plasmon resonance light beam for generating a first bandwidth surface plasmon image signal and a second bandwidth surface plasmon image signal, respectively; and an image processing unit coupled to the imaging module and receiving the first bandwidth surface plasmon image signal and the second bandwidth surface plasmon image signal for generating a surface plasmon signal image; wherein the surface plasmon resonance wavelength of the surface plasmon resonance sensing chip is less than a minimum wavelength of the first bandwidth plasmon resonance light beam and greater than a maximum wavelength of the second bandwidth plasmon resonance light beam, a difference between the surface plasmon resonance wavelength and the minimum wavelength of the first bandwidth plasmon resonance light beam is less than 10 nm, and a difference between the surface plasmon resonance wavelength and the maximum wavelength of the second bandwidth plasmon resonance light beam is less than 10 nm. a single light source module for emitting a broadband light beam; a spectral modulation module comprising a first bandwidth filter and a second bandwidth filter, wherein the spectral modulation module is arranged to receive the broadband light beam to generate a first bandwidth incident light beam and a second bandwidth incident light beam, respectively; a surface plasmon resonance sensing chip having a surface plasmon resonance wavelength, wherein the surface plasmon resonance sensing chip is arranged to receive the first bandwidth incident light beam and the second bandwidth incident light beam for correspondingly generating a first bandwidth plasmon resonance light beam and a second bandwidth plasmon resonance light beam; an imaging module configured to receive the first bandwidth plasmon resonance light beam and the second bandwidth plasmon resonance light beam for generating a first bandwidth surface plasmon image signal and a second bandwidth surface plasmon image signal, respectively; and an image processing unit coupled to the imaging module and receiving the first bandwidth surface plasmon image signal and the second bandwidth surface plasmon image signal for generating a surface plasmon signal image; wherein the surface plasmon resonance wavelength of the surface plasmon resonance sensing chip is less than a minimum wavelength of the first bandwidth plasmon resonance light beam and greater than a maximum wavelength of the second bandwidth plasmon resonance light beam, a difference between the surface plasmon resonance wavelength and the minimum wavelength of the first bandwidth plasmon resonance light beam is less than 10 nm, and a difference between the surface plasmon resonance wavelength and the maximum wavelength of the second bandwidth plasmon resonance light beam is less than 10 nm.