Abstract In the new era of Industry 4.0, traditional manufacturing plants are forced to transform into smart factories with cyber-physical product creation systems. Robots are believed to be one of the key components of such systems. This paper presents an architecture of using cloud-based ubiquitous robotic systems for smart manufacturing of the customized product. A framework for designing a cloud-based ubiquitous robotic system (URS) is developed, which consists of the function, structure and behavior of a URS. After that, a procedure for the development of such a URS is provided. Finally, the implementation of a cloud-based ubiquitous robotic system for smart producing and assembly of a customized product shows that the proposed approach can achieve the goal of smart manufacturing of customized product by developing cloud-based ubiquitous robotic systems.