The invention discloses a method for executing chemical reaction. The execution method includes concentrating solar radiation; guiding the concentrated solar radiation to the reactant zone in a reactor through the light transmission surface of the reactor, executing a reactant conveying system to guide reactant to the reactant zone in a rotary and spiral manner, executing heat adsorption reaction in the reactant zone to generate a product, and executing a product removing system to perform inward or outward circular positioning from the reactant conveying system to remove the product from the reactant zone.