In the current study, we collected three samples from lacustrine sequences at southeast Mu Us sandy land.For each of these samples, both quartz and K-feldspar fractions were extracted for luminescence dating using small aliquot (2 mm) technique.The single aliquot regenerative-dose (SAR) protocol was applied to measure the equivalent dose (De) of quartz samples (at preheat temperature of 260℃).Dose recovery tests and luminescence characteristics of quartz suggest that the quartz SAR protocol is suitable and the samples were well bleached before deposition, and the resultant ages of quartz fraction are reliable.For K-feldspar fraction, a new post-IR IRSL protocol measured at 150℃ (pIRIR₁₅₀) was used to determine the De.Dose recovery tests and luminescence characteristics of K-feldspar meet the requirement well.A set of tests, such as residual test and fading test, was carried out.Residual doses of pIRIR₁₅₀ signal are between -0.2 and 0.026 Gy, which can be considered negligible for the Holocene sediments.The g-values of pIRIR₁₅₀ signal (0.55-1.71(%/decade)) are much lower, comparing with that of IRSL₅₀ signal, or even negligible.Thus, we propose that the use of pIRIR₁₅₀ signal is able to reduce anomalous fading to a negligible level.Subsequently, the K-feldspar pIRIR₁₅₀ ages are not corrected for anomalous fading.For the three samples, the quartz ages are 11.3±0.9, 6.5±0.6 and 2.7±0.2 ka BP, respectively, and the K-feldspar ages are 10.0±0.7, 6.9±0.5 and 2.4±0.2 ka BP, respectively.Both ages from the two methods agree with each other within the error ranges.Therefore, K-feldspar pIRIR₁₅₀ protocol can be applied for dating the Holocene lacustrine sediments from southeast Mu Us sandy land.Our research found a method to date the samples that their luminescence signal intensity of quartz is too low to be detected, and a geochronology to support for environmental changes in the Holocene, especially in the historical period (past 2000 years).