Simultaneous monitoring observations of H₂O 6_1,6−5_2,3 and SiO v=1, 2, J=1→0, v=1, J=2→1, J=3→2 masers were performed toward the suspected D-type symbiotic star V627 Cas from 2011 October to 2020 March using the Korean Very Long Baseline Interferometry (VLBI) Network (KVN) single-dish telescopes. All spectra of the H₂O masers showed highly redshifted emissions with respect to the stellar velocity of −52 km s⁻¹ with high asymmetries. In addition, the spectra of the H₂O maser showed three components which varied according to observational dates. On the other hand, the SiO v=1, 2, J=1→0 and v=1, J=2→1 masers exhibited a predominantly blueshifted emission in most epochs. The SiO v=1, J=3→2 maser has arisen around the stellar velocity from 2016 November 19 and shows a predominantly redshifted emission from 2018 June 15. We analyze time variations of the H₂O and SiO maser intensities, their intensity ratios, peak and mean velocities, and full width zero power. Based on these analyses, the asymmetries of the H₂O and SiO masers’ spectra in V627 Cas and the variation characteristics of the maser properties of the different maser lines are discussed. As a possible cause of asymmetries, the influence of a hot component located at the eastern part of the red giant can be suggested based on the KVN VLBI results. The differences in the variation characteristics of the maser properties may originate from the differences in their locations and excitation conditions.

对H ₂ O 6 _1,6 -5 _2,3和SiO v = 1，2，J = 1→0，v = 1，J = 2→1，J = 3→2 masers同时进行监测使用韩国甚长基线干涉测量（VLBI）网络（KVN）单碟望远镜从2011年10月至2020年3月，怀疑D型共生恒星V627 Cas为恒星。相对于-52 km s ^-1的恒星速度，H ₂ O masers的所有光谱都显示出高度红移的发射，并且具有很高的不对称性。另外，H ₂的光谱奥马瑟（O maser）显示了三个分量，这些分量随观测日期而变化。另一方面，SiO v = 1、2，J = 1→0和v = 1，J = 2→1 masers在大多数时期表现出主要为蓝移发射。SiO v = 1，J = 3→2 maser从2016年11月19日开始出现在恒星速度附近，并且显示出从2018年6月15日开始主要发生红移。我们分析了H ₂ O和SiO maser强度的时间变化及其强度比。 ，峰值和平均速度以及全宽零功率。基于这些分析，H ₂的不对称性讨论了V627 Cas中的O和SiO masers谱，以及不同maser谱线的maser特性的变化特征。作为不对称的可能原因，可以根据KVN VLBI结果建议位于红巨星东部的热成分的影响。脉石性质变化特征的差异可能源于其位置和激发条件的差异。