A slide type variable resistor with a resistance adjusting member, comprising a housing, two side rails, a circuit module, a control member and a base. The housing includes a housing limiting hole and a space. The two side rails are disposed in the space. The circuit module is disposed in the space and has a resistive circuit. The control member is disposed in the space. The control member includes an object, at least one metal brush, a handle and an elastic member. The object having a bump, and the elastic member is sleeved at the bump.