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In the effort of productivity management of floor plate formwork method and minimizing waste in building projects, the contractor must know the level of productivity of conventional floor plate formwork method and panel floor formwork method. Aim of this research is to explore the strategy of increasing productivity by three objectives: (1) measuring productivity of the implementing floor plate formwork among two methods, (2) analysing the productivity ratio based on first objective through productivity factors 5M (Method, Material, Machine, Man Power and Money) on building projects, (3) analysing waste in the comparison between 2 methods. The research method used was a case study of a university building project in Yogyakarta. Strategies to answer the research objectives were carried out an analysis of productivity in both methods. The results showed that the panel floor formwork method method productivity is greater that is 595.84 m2/day and labor productivity is 36.67 m2/ person / day, compared to conventional floor plate formwork method productivity is smaller that is 385.13 m2 / day and labor productivity is 27.03 m2 / person / day, and panel floor plate formwork can minimize waste in lean construction assessment board assessment