NOVELTY - A silica-based porous membrane comprises holes in matrix which contains silica as main component. Refractive index of membrane is 1.1-1.38. Hole diameter is greater than or equal to 20 nm. Number of holes which have diameter of greater than or equal to 20 nm and are opened to outermost surface is less than or equal to 13 pieces/106 nm2. Water contact angle of outermost surface is greater than or equal to 70 degrees .    USE - A silica-based porous membrane for goods (claimed) used for vehicles, display devices, light sources, and solar cells.    ADVANTAGE - The silica-based porous membrane has good anti-reflection performance and antifouling property and simple manufacturing process.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) goods which have silica-based porous membrane on surface; and    (2) manufacturing method of goods with silica-based porous membrane which involves applying coating liquid containing matrix precursor, particle which can be removed from matrix, and liquid medium on surface of goods and heat-processing in which matrix precursor contains compound (A), compound (B1), and compound (B2), amount of compound (A) is greater than or equal to 5 mass% with respect to total solid amount of coating liquid, average primary particle diameter of particle is 20-130 nm, compound (A) is co-hydrolysate or partial condensate of silane compound of formula Y1nSiX4-n (1) and/or hydrolyzate or partial condensate of silane compound of formula SiX4 (2), compound (B1) is compound (1), its hydrolysate, or its partial condensate, provided that n is 1 or 3, compound (B2) is silane compound (2), its hydrolysate, or its partial condensate, and ratio ((1)/(2)) of total number of moles of compound (1) which forms compound (A) and number of moles of compound (1) which forms compound (B1) with respect to total number of moles of compound (2) which forms compound (A) and number of moles of compound (2) which forms compound (B2) is 0.1-25.    X=hydrolyzable group;    Y1=non-hydrolyzable group in which dielectric constant of Y-OH is less than or equal to 50 F/m; and    n=1-3.