The HDTMS/MPTMS-ATP modified particles were prepared by Stober method with attapulgite（ATP），tetraethyl orthosilicate（TEOS），hexadecyl trimethoxysilan（HDTMS） and γ-methacryloyloxypropyl trimethoxysilane（MPTMS）as raw materials，which were further composited with PDMS to form durable superhydrophobic composite coatings. A stable Si—C covalent structure between the modified ATP particles and the film-former was constructedthrough the addition reaction of the C=C double bond of modified ATP and the Si—H bond of PMDS. The structure，morphology and wettability of the composite ATP particles and coatingwere characterized by transmission electron microscope（TEM），scanning electron microscope（SEM），atomic force microscope（AFM），Fourier transformation infrared spectrum（FT-IR） and contact angle meter. The effect of the mass ratio of modified ATP to PDMS on the coatingperformance was examined. The results showed that the coating adhesion grade was grade1，static water contact angle was 160.5°and sliding angle was 2.8°. When the mass ratio of modified ATP to PDMS was 3∶5，the composite coating still exhibited superhydrophobicity after 80 times sandpaper polishing，100 times peel resistance and 24 h acid to alkali solution immersion test.