The invention provides a preparation method for trans-4-alkoxycyclohexylamine. The method includes the following steps: (1) trans-4-hydroxycyclohexylamine reacts with triphenylmethyl halide, so that triphenylmethyl-protected trans-4-hydroxycyclohexylamine shown as formula I is obtained; (2) the solution of triphenylmethyl-protected trans-4-hydroxycyclohexylamine shown as formula I is added with sodium hydride, and is then added with halogenated alkane to react, so that triphenylmethyl-protected trans-4-alkoxycyclohexylamine shown as formula II is obtained; (3) triphenylmethyl-protected trans-4-alkoxycyclohexylamine shown as formula II undergoes deprotection reaction, so that trans-4-alkoxycyclohexylamine is obtained. By utilizing the preparation method, the flow of the preparation processfor trans-4-alkoxycyclohexylamine is simpler and environmentally friendly, irritation and allergens do not exist, industrial production is easy to operate, total yield is high, and mass production iseasy.