The invention discloses a method and device for reading variable value, wherein the method comprises: determining a variable identifier of a variable to be read. Based on the variable identifier, all the required configuration files are integrated in a development process of current program to obtain a target file, and then the variable value of the variable is read in the obtained target file. The method and device for reading variable values have the advantages of speeding up the reading speed of variable values and improving the efficiency of developer coding.