The modularity has been applied in every industry very widely. The kitchen design to meet the functions requirement of the building is suitable for modularity. So, the multi-functions kitchenware design is the main target in the research. The system design can be based on the customer̛ s requirement to extent the variation of combinations. The study bases on the Dovetail slot design which will combining the interface of Kitchenware equipments, It can apply the connection of kitchen modularity and improve the possibility of deformation or damage by external forces. In order to achieve the design of kitchen modularity realistically, measuring size and the tolerance of Dovetail slot. We use ANSYS finite elements software to simulate the value of weight and the level of safety to improve the factors of deformation or damage by the possibility of external forces.