The invention discloses a high-efficiency multielement compound foliage selenium fertilizer which aims to increase selenium artificially. The high-efficiency multielement compound foliage selenium fertilizer comprises the following components: macroelements, medium elements, microelements, chelator, selenium, rare-earth elements, active organic substances, growth regulator and surfactant. The high-efficiency multielement compound foliage selenium fertilizer is especially suitable for producing selenium-rich tea, selenium-rich rice, selenium-rich corn and other selenium-rich agricultural products in low-selenium or selenium-deficient regions. The invention has the advantages of favorable raw material compatibility, scientific proportion, scientific technique and diversified and compounded nutrient elements, and can effectively solve the nutrient deficiency symptom of the crop, thereby achieving the goal of sufficiently supplementing insufficient soil nutrients.