Resin coated galvanized steel sheet

The present invention relates to a resin coated galvanized steel sheet which has resin coating films containing an aqueous resin, colloidal silica and graphite on both surfaces of a galvanized steel sheet, and which is configured such that: the resin coating films have a film thickness of 0.50-1.2 μm; 55-90% by mass of the aqueous resin, 5-30% by mass of the colloidal silica and 5-15% by mass of the graphite are contained in 100% by mass of the total of the aqueous resin, the colloidal silica and the graphite; the graphite has an average length of 1-10 μm; and the L value of the surfaces of the resin coating films is 50 or more.