The invention discloses a sized connecting assembly, an aluminum frame wood mould and a template construction method. The sized connecting assembly comprises two first connectors arranged at intervalsand two second connectors arranged at intervals. The two second connectors are vertically arranged between the two first connectors. Each first connector includes at least one first connecting frame.A first connecting hole connected with an aluminum template is formed in one side of each first connecting frame. When each first connector includes two or more first connecting frames, the two adjacent first connecting frames are fixedly connected through a first lengthening connector. Each second connector includes at least one second connecting frame. A second connecting hole connected with the aluminum template is formed in one side of each second connecting frame. When each second connector includes two or more second connecting frames, the two adjacent second connecting frames are fixedly connected through a second lengthening connector. Compared with the prior art, the aluminum frame wood mould made by the sized connecting assembly is diversified in structure, high in turnover utilization, and convenient to disassemble, assemble and revolve.