This research was aimed to describe the necessary analysis of module of chemistry based REACT (Relating, Experiencing, Applying, Cooperating and Transferring) to improve student’s critical thingking ability on colloid material. The population of this research was all of students of class XI SMA Negeri 2 Bandar Lampung, SMA Negeri 3 Bandar Lampung and SMA Negeri 12 Bandar Lampung in even semester of academic year 2016-2017. The sample were two classes of XI IPA as control class and experimental class for each school. The method of research that used was research and development (RnD) that develop the product as module that used to hand’s book on chemistry subject specially colloid material. The analysis of hand’s book was used aspects of critical thinking proposed by Facione (2011) are interpretation, analysis, evaluation, conclusion, and explanation. Based on the result of the analysis of hand’s book at SMA Negeri 12 Bandar Lampung for critical thinking need in colloid material that indicate 50% indicator is appropriate, while for indicator of inference and explanation only 16,67% appropriate, then for indicator analysis and evaluation doesn’t have conformity. Based on the results of the analysis shows that the hand’s book used have not empowered critical thinking skills with the maximum. The module development on colloid material is needed  to overcome the problem of  hand’s book  that hasn’t maximized critical thinking ability, then the development of module oriented to REACT learning model (Relating, Experiencing, Applying, Cooperating, and Tranffering).