The invention provides a multimode imaging detection system for skin disease, characterized in that a supercontinuum laser is adopted, different wavelengths for specific skin tissues are selected to acquire hyperspectral and high-resolution confocal imaging, simultaneously the characteristic of deep depth of photoacoustic technique imaging is combined, and system integration of a hyperspectral imaging technique, a reflection type confocal imaging technique and a photoacoustic imaging technique is carried out to form the multimode optical imaging system. The multimode imaging detection system repairs the shortcoming of single-mode imaging in skin diagnosis, and compared with the single-modal technique, the multimode technique provides more complete information, improves the sensibility, accuracy and specificity in skin disease diagnosis, realizes hyperspectral, high-resolution and high-speed multimode optical molecular images for deep level skin disease diagnosis, provides a new technical means for diagnosis and clinical research on skin disease, is favorable for improving the diagnosis level of skin disease, and simultaneously can guide operation on skin disease and provide objective evaluation on medication of skin disease.