The invention discloses an early-removal formwork system for concreting of constructions comprising beams, plates and columns. The early-removal formwork system comprises a plurality of rectangular standard forms, a plurality of early-removal support columns, a plurality of auxiliary beams and auxiliary forms. Each standard form comprises a face plate and a form frame, and the form frame is provided with L-shaped corner pieces at four corners. Each early-removal support column comprises an upper support column and a lower support column in telescopic connection, a rectangular top plate is disposed at the top end of the upper support column, one corner of the top plate and an internal corner of the optional L-shaped corner piece on each form frame are complementary, an unloading mechanism is connected between the upper support column and the lower support column, an early removal mechanism for early removal of the standard forms is disposed on the upper support column, short support posts for supporting one form frame are disposed at four corners of the early removal mechanism, and a structure for preventing the corresponding form frame to slip out is formed between each short support post and the corresponding L-shaped corner piece. The form frames, the auxiliary forms, the auxiliary beams and suspension beams are all in removal combined structures. The early-removal formwork system has the advantages that no secondary auxiliary beam or secondary auxiliary form is needed, specifications and amount of forms are reduced, transport and storage are facilitated, volume and capacity can be reduced effectively, and material management and cost reduction are benefited.