The study of macromolecular chains condensation will be beneficial with the discussion about polymer solutions.The transitions from dilute solution to semi-dilute and to concentrated solution were in nature the process of interlace

entanglement and condensation of a lot of isolated single chains.This can be known as lyotropic condensation.The types of chains lyotropic condensation are varied

e.g.condensed to amorphous state

to crystal state

and sol-gel transition etc.The characters of these processes were discussed.The basic physical problems in lyotropic condensation: e.g.many-body effects

correlations

mean field approximation

critical index and the new study method——scaling laws were brief introduced.