Some instances of papers that have been called into doubt include those that have been subject to identity theft, forged signatures or phrases, altered documents, and the forgery of banknotes or other security documents. For concerns involving paper or inks, chemical analysis is necessary, and following instrumental data collection in this field, multivariate analysis, also known as chemometrics, has arisen as a new approach for data evaluation and explanation. The goal of this research is to locate past studies that used forensic motivation to questioned documents using multivariate analysis. During the search, articles were discovered in four databases (Pubmed, Google Scholar, Scopus, and Science Direct). 26 research that have been selected in the last 10 years. There were 34 papers on pen inks, 14 pieces on printed documents, 4 articles on the study of banknotes, and 8 publications on paper. The analytical techniques used to get chemical data included multivariate image analysis, spectroscopy, chromatography, mass spectrometry, and thermo gravimetric analysis. Unsupervised pattern recognition, supervised pattern recognition techniques, and regression methodologies approaches were some of the chemometrics methods investigated. In order to emphasise how crucial it is for forensic professionals to be familiar with these procedures, this study summarised and discussed multivariate analysis techniques employed in a number of questioned document sub-areas. It also includes new research areas that aren't included in this report, such various printing and materials, inks, and security document analysis. Keywords: Questioned documents; Inks; Paper; Chemometrics; Multivariate Analysis; Forgery.