The novel suspension-type tunnel-type spectral fish tank is mainly composed of a light-transmitting cylinder body and a light-transmitting support supporting the light-transmitting cylinder body made of a light-transmitting material, so as to be emitted by light-emitting units provided at the bottom of the light-transmitting supports. The light can be transmitted to the light-transmitting cylinder through the light-transmitting brackets, and further diffuse outward through the light-transmitting brackets and the peripheral surface of the light-transmitting cylinder to make the light-transmitting cylinder and the light-transmitting Due to the change of the light-emitting unit, the bracket exhibits a spectral and color spectrum change, which is not only conducive to viewing the aquarium scenery in the transparent cylinder, but also can completely present the aesthetic appearance of the overall appearance of the transparent cylinder, in order to create different The change of visual senses enhances the overall space atmosphere and achieves the double effects of landscaping and decorative environment, thereby enhancing the overall viewing value and practicality.