To provide a method for producing an alkenylaryl by subjecting an aryl alcohol raw material liquid containing titanium as an impurity to dehydration reaction in the presence of an alumina-based dehydration catalyst, which has an excellent effect of efficiently obtaining an alkenylaryl at a low cost.

In the method for producing an alkenylaryl, the titanium concentration in the aryl alcohol raw material liquid is 0.01-0.5 (weight ppm). Any catalyst containing alumina may be used as an example of an alumina-based dehydration catalyst. Active alumina, active alumina containing a metal such as copper, zinc, palladium etc., silica-alumina, silica-alumina containing a metal such as copper, zinc, palladium etc., may be cited as the example. Active alumina is preferable in terms of catalyst life and selectivity.