Abstract: Recently, reference proposed a dynamic searchable encryption scheme with forward security in multi-user environment. However, the scheme uses bilinear pairing to achieve multi-user access control, and the search efficiency is low. On this basis, this paper constructed two static Hash tables to map each other to construct matrix index, and used pseudo-random function and Hash function to replace bilinear pair to generate key to improve the search efficiency of the scheme. Through formal security proof, it is proved that the scheme satisfies forward security.