Abstract: Citrus fruits are always contaminated by microorganisms such as Penicilliums, Alternaria alternate during its growing, harvesting, storage and transport process.These microorganisms can produce mycotoxins and be harmful to the citrus fruits and their products qualities.The harmness, contamination status and distribution status of main mycotoxins in the citrus fruits were presented and analyzed in the paper.Combined with their mainstream detection and pollution control technologies, the potential research directions of mycotoxins in citrus fruits was analyzed.It will be beneficial to citrus fruits and their products' quality as well as its industrial development significantly.