Abstract: This paper presents an in-depth and comprehensive review of the latest research advancements in InAs/GaSb II-Type superlattice-based multicolor infrared detectors, which are pivotal to a wide range of applications, including night vision, thermal imaging, and remote sensing. The core performance parameters of these detectors are intricately linked to several critical factors, including the meticulous design of their band structure, which governs the electronic transitions and, consequently, the spectral response characteristics. This design aspect is crucial for optimizing the detectors' sensitivity and selectivity across different infrared wavelength bands. The molecular beam epitaxy （MBE） fabrication process is another cornerstone in the development of high-performance multicolor infrared detectors. Precise control over layer thickness, composition, and interface quality during MBE growth is essential for achieving low dark current, high quantum efficiency, and minimal defects, all of which are vital for enhancing the detectors' overall performance. Beyond these foundational elements, the paper also delves into the nuanced aspects of detector performance, such as the management of dark current, which can obscure weak signals, and the optimization of quantum efficiency, which directly impacts the detectors' signal-to-noise ratio. Additionally, the issue of crosstalk between adjacent detector pixels or spectral channels emerges as a significant challenge, particularly in multicolor configurations, where it can degrade spatial resolution and spectral purity. The review systematically examines the performance landscape of multicolor infrared detectors, encompassing dual-band （short/medium, short/long, medium/medium, medium/long, long/long, and long/very long waveband） to tricolor （short/medium/long, medium/long/very long waveband） variants. It critically analyzes the strengths and limitations of these detectors across different spectral regimes and highlights ongoing research efforts aimed at mitigating crosstalk and enhancing overall performance. Finally, the paper proposes forward-looking strategies and future research directions to further advance the field of multicolor infrared detection.