The invention provides a guiding support, which is a component for an intelligent petroleum pipeline cleaner, with the holding power adjustable. The guiding support comprises a pedestal, a three-point connecting rod and an elastic component; the pedestal is connected with the main body of the intelligent petroleum pipeline cleaner; the three-point connecting rod is provided with and passes through a hinge support hole; the three-point connecting rod is connected with the pedestal, a guide wheel and the elastic component; the invention provides a guiding support with easily adjustable characteristic relation between the displacement and elasticity with sound universality.