A recombinant baculovirus is provided for preparing picornavirus virus-like particles (VLP), wherein Chitinase A (ChiA) and Cathepsin V (v-cath) genes of the recombinant baculovirus are functionally disrupted and the recombinant baculovirus includes a picornavirus capsid protein gene under control of a strong promoter, and includes a protease gene configured for encoding a protease for hydrolyzing the capsid protein under control of a weak promoter. The recombinant baculovirus of the present invention may adopt High Five or Sf-9 cells for manufacturing enterovirus virus-like particles with improved stability and higher yields in comparison with the conventional arts. A method for preparing virus like particles is also herein provided. |