By integrating 13 published speleothem δ¹⁸O records from the East Asian summer monsoon (EASM) region, this study systematically analyzed the spatio-temporal characteristics of the 8.2 (8.7–7.7) and 4.2 (4.7–3.7) ka BP abrupt climate events. The results indicate that both the temporal resolution and geographical location significantly affect the ability of the stalagmite δ¹⁸O sequences to record the 8.2 and 4.2 ka BP events. During the 8.2 ka BP event, δ¹⁸O records from both northern and southern sites showed pronounced positive excursions, whereas during the 4.2 ka BP event, δ¹⁸O records from the north and south exhibited contrasting patterns. These findings provide important evidence for understanding the mechanisms of abrupt climate change and for assessing regional climate sensitivity. The related results were published in Science China: Earth Sciences, Issue 9, 2025.