The invention provides a selenium-rich and chromium-rich paddy compound fertilizer, prepared from the following raw materials in parts by weight: 400-600 parts of nitrogen fertilizer, 800-1000 parts of phosphogypsum, 200-400 parts of potash fertilizer, 50-100 parts of manganese fertilizer, 50-80 parts of silicon fertilizer, 30-40 parts of carbon enzyme, 50-70 parts of nitrohumic acid, 2-8 parts of organic trace elements, 3-7 parts of inorganic trace elements, 10-20 parts of biomass lime-ash, 1-2 parts of inorganic selenium salt and 0.01-0.03 part of chromium trichloride; the organic trace elements comprise a saccharose complex and a humic acid complex. The selenium-rich and chromium-rich paddy compound fertilizer has the advantages of high peanut yield, strong plant disease resistance and suitability for large-area application, fruited earheads are bigger and heavy, and good in quality, and selenium-rich and chromium-rich paddy contains a selenium element and a chromium element necessary for human bodies and animals, and is high in nutrition value and beneficial to health.