The invention discloses a wall decoration material, particularly relates to an ecological health-preserving interior wall material and a preparation method thereof, and belongs to the technical fieldof building decoration materials. The ecological health-preserving interior wall material is prepared from the following raw materials in parts by weight: 50-60 parts of jade powder, 20-25 parts of zeolite powder, 5-10 parts of medical stone, 2-3 parts of six-ring rock powder, 2-3 parts of kaolin powder, 2-3 parts of titanium dioxide, 1-2 parts of nanoscale titanium dioxide, 1-2 parts of negativeion powder, 4-6 parts of redispersible rubber powder and 0.5-1 part of methyl hydroxyethyl cellulose. The ecological health-preserving interior wall material has the function of eliminating formaldehyde, can release anions and trace elements required by a human body for a long time, has the characteristics of disinfection, deodorization, bacteria resistance, bacteriostasis, fire resistance, flameretardance, alkali resistance, mildew resistance, sound absorption and noise reduction, and is long in service life and soft in color.