Independent frame, assembly plate, furniture and furniture installation method

The invention relates to an independent frame, an assembly plate, furniture and a furniture installation method. The independent frame comprises two oppositely-arranged embedded frames and two oppositely-arranged lock groove frames. Each embedded frame comprises an embedded frame inner side and an embedded frame outer side opposite to the embedded frame inner side, and an embedded frame groove isformed in the inner side of the embedded frame. Each lock groove frame comprises a lock groove frame inner side and a lock groove frame outer side opposite to the lock groove frame inner side, a lockgroove frame groove is formed in the inner side of the lock groove frame, first mortises corresponding to the embedded frame groove are formed at two ends of each lock groove frame respectively, the first mortises are inserted into the embedded frame grooves respectively, the two embedded frames and the two lock groove frames are mutually fixed to define a frame, the bottoms of the two lock grooveframes extend outwards res