Bioinformatics is a new scientific research area in which computers, specialized software, and databases are exploited to solve biological problems especially in molecular and cellular contexts.A working domain in bioinformatics is protein complex detection. Protein complexes are groups of proteins that collaborate to perform a particular function inside the living cell. In this filed, researchers have focused on designing algorithms to improve this grouping over the proteins. presented algorithms in this filed,identification protein complex from Graph made of the interactive network. A group of these methods A left; MARGIN: 0in 0in 0pt" dir=rtl align=right Keywords : rotein complexes, Protein-protein interaction networks, Biological similarity, Topological similarity, Fuzzy voter, Interval Type-2 Fuzzy Sets