An encapsulating method, a display panel and a display apparatus, the encapsulating method including: forming a frit layer in an encapsulating area of a first substrate; forming a glass network modifier oxide layer on the surface of the frit layer; a first-sintering for the frit layer and the glass network modifier oxide layer; and aligning and attaching the first substrate and a second substrate, and forming an encapsulating structure through irradiating the encapsulating area by a laser. The encapsulating method can improve the liquidity of the surface of the frit layer and make the surface of the frit planarization after sintering at high temperature, so that the production of the holes of the surface of the frit layer can be reduced in the process of being encapsulated by a laser, and then the effect of encapsulating is improved.