The invention discloses a rice black-streaked dwarf disease control agent containing microelements and an application method of the rice black-streaked dwarf disease control agent. According to the rice black-streaked dwarf disease control agent containing the microelements, two rice planthopper killing agents including thiamethoxam and nitenpyram and two antiviral agents including Dufulin and cytosintetidemycin are combined for controlling rice black-streaked dwarf disease, so that the control effect can be enhanced; by means of lentinan and harpin protein added to the rice black-streaked dwarf disease control agent containing the microelements, disease resistance of rice can be improved, rice quality is improved, and rice yield is increased; six micro-elements including iron, zinc, selenium, copper, manganese an d boron are added to the rice black-streaked dwarf disease control agent, the micro-elements required by rice growth are provided, and the problem that rice is short of the micro-elements essential for a human body is solved. The rice black-streaked dwarf disease control agent containing the microelements is sprayed to rice leaves at the seedling stage, the tillering stage and the booting stage of rice, and the purposes of saving labor and time and increasing yield and nutrition are achieved.