The present invention relates to a separable prop head guide used in a construction using a retention type prop head, provided at a lower part of a prop head and at an outer side of a supporter after construction of a roof, to be dropped along the outer side of the supporter when a slab panel and a beam are dropped, thereby more stably dropping the slab panel and the beam, and being conveniently separated from the supporter after the construction. The present invention provides the separable prop head guide used in the construction using the retention type prop head (6000, 6000′), including the prop head (5000, 5000′) connected to a beam (3000), and having a lower part supported by a sliding bar (7300) of the supporter to support the slab panel and the beam, and is provided at the lower part of the prop head and the outer side of the sliding bar (7300) of the supporter (7000) to be dropped with the sliding bar when the slab panel and the beam are dropped.
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