Polymer derived Al-containing silicon carbide (SiC) ceramic fibers as one of the ideal reinforcers for high-temperature ceramic matrix compositeshavesuperiorproperties such as high tensile strength, high modulus, high temperature and oxidation resistance. This review represented development on thepreparation of polymer derived Al-containing SiC ceramic fibers (i.e, synthesis and mechanism of polyaluminocarsilane (PACS), curing method of PACS fibers and controlling defects of Si(Al)C fibers). The advantages and disadvantages of existing PACS synthesis routes and curing processes of PACS fibers were discussed. In addition, this review alsoprospected the future sustainable aspectsto develop new PACS synthesis route and efficient curing method for improving the mechanical properties of Si(Al)C ceramic fibers.