The work aims to propose design strategies for the positive experience cycle of product. Firstly, literature research was used to define the influential factors of the positive experience cycle. Secondly, 100 product and service design samples were collected by the desk research method, and then 50 product samples were selected by 5 designers in accordance with the rich product positive experience cycle. Thirdly, supported by the focus group method, 8 designers analyzed how each product sample enriched users' positive experience cycle. Fourthly, based on both the positive experience cycle visualization chart and the GIOIA method, design strategies were extracted to enrich the positive experience cycle of product. Finally, the feasibility and validity of the design strategies were verified by design workshop. Totally, 14 design strategies were proposed, such as:preheating (scenario substitution, visual expectation, and functional traction), activities (clear use, real-time interaction, multi-purpose situation, sustainable experience, immersed experience, and emotional construction), assessment (fluency experience and satisfaction validity), impact (short-term contribution, medium- term change, and long-term effect). The design strategies are helpful for designers to effectively generate design concepts to enrich the positive experience of users and improve their sustainable positive experience and subjective wellbeing.