Objective: To explore changes in sugar-sweetened beverages (SSB) intake from 2002 to 2022 among Beijing adults. Methods: Data were obtained from the Beijing subset of the Chinese Nutrition and Health Surveillance (2002, 2010–2013, 2015–2017 and 2022). SSB intake was assessed via 12-month Food Frequency Questionnaire. Binary logistic and linear regression were fitted with survey year included as both linear and quadratic terms to examine nonlinear patterns. Results: A total of 7261 adults from four waves were included. After adjustments for demographic characteristics, prevalence of SSB intake exhibited a potential non-monotonic pattern (βlinear > 0, βquadratic < 0; P < 0.05), increasing from 34.6% in 2002 to 56.6% in 2010–2013, and subsequently appeared to stabilize around 44.7% by 2022. An opposite non-linear fluctuation (both βlinear < 0, βquadratic > 0; P < 0.05) was observed for daily SSB intake levels among both the total population and consumers. Estimates decreased from 59.7 mL and 172.6 mL in 2002 to a nadir in 2015–2017 (32.8 mL and 73.5 mL, respectively), and increased to 64.4 mL and 144.0 mL in 2022. Conclusions: Divergent patterns in prevalence and levels of SSB intake may point toward an increased consumption among existing consumers in Beijing.