A method for manufacturing a polymer dispersed liquid crystal (PDLC) panel, which comprises: obtaining a liquid crystal mixture by uniformly mixing liquid crystal molecules, a photoinitiator and a prepolymer; forming a liquid crystal cell (23) by injecting the obtained liquid crystal mixture into an empty liquid crystal cell (22); and obtaining the PDLC panel by adopting uniformly alternated intense and weak light to irradiate the liquid crystal cell (23) to allow the liquid crystal mixture in the liquid crystal cell (23) to be subjected to polymerization. By adoption of the method, the manufactured PDLC panel has uniform brightness.