PURPOSE: To provide the folding supporting base, which consists of a small number of members and is superior in support characteristics of the resistance to wind pressure, etc., and can be compactly arranged and packed, as the antenna supporting base which is used to set a community antenna including parabolic antenna in a steel flamed reinforced concrete multifle dwelling house or the like.

CONSTITUTION: This supporting base consists of a mast supporting cylinder 4, a supporting rod 3 supporting the mast supporting cylinder 4, and a base rod 2, and these members are built in by bolts and nuts 7, 8, 9,... The mast supporting cylinder 4 is made of a rectangular pipe, and the supporting rod 3 and the base rod 2 are made of angle materials, and junction seats to be joined to faces of the mast supporting cylinder 4 and the base rod 2 are formed in both end parts of the supporting rod 3.