The present invention relates to a method which is used for preparing low-carbon olefins with methanol and mainly solves the problem of the low selectivity of the products when the methanol is used for preparing the low-carbon olefins. The method adopts the following steps to well solve the problem: (a) oxygen-containing compounds comprising the methanol are heated and contact aluminosilicophosphate zeolite catalyst in a reactor, under the conditions of the reaction temperature of 300 to 600 DEG C, the oxygen-containing compounds with the weight hourly space velocity of 1 to 50 h<-1>, and the reaction pressure (gauge pressure) of 0.05 to 10 MPa; (b) the catalyst and reaction products are separated; (c) the reaction products and the oxygen-containing compounds comprising the methanol exchange the heat so as to heat the oxygen-containing compounds comprising the methanol to be between 100 DEG C and 350 DEGC when the heat of the reaction products can be guaranteed to be effectively recycled; (d) the steps from (a) to (c) are repeated. The method can be used for the industrial production of the low-carbon olefins.