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The first synthesis of pillar[7]arene is reported with two methods.Method A:the FeCl3-catalyzed condensation reaction of 1,4-dimethoxybenzene (1) with paraformaldehyde in CHCl3 gave dimethoxypillar[7]arene (3).Method B:the p-toluenesulfonic acid catalyzed condensation reaction of 2,5-bis(benzyloxymethyl)-1,4-dimethoxybenzene (2) in CH2Cl2 gave compound 3.Demethylation of 3 with BBr3 gave pillar[7]arene (4).The pillar[7]arene might be a perspective macrocyclic host in host-guest chemistry.