The aging of bitumen is an urgent problem in pavement engineering materials. The objective of this work was to fabricate an intelligent anti-aging bitumen using a clean microcapsule product that secretes waste cooking oil through polyacrylamide (PAM)-gel in a porous shell structure. The microcapsule had a composite shell with cross-linked hexamethoxymethylmelamine as a skeleton with a porous structure and gel PAM filled in pores as the channels of the liquid waste cooking oil as core material. Aged bitumen was mixed with various microcapsules, and their physical and chemical properties were investigated. The testing results indicated that shells had successfully microencapsulated the oily rejuvenator without defects and damages. FT-IR results showed that the HMMM had been cross-linked and PAM also deposited in shells. SEM morphology showed that PAM was removed from the shell material after alcohol elution, and the shell still kept the spherical shape with a porous structure. Penetration experiments have demonstrated that PAM in the porous structure of the shell material can serve as a secretion channel for core material. Microcapsules had perfect thermal stability and homogeneous dispersion in bitumen, and there was no interface separation phenomenon. The test results showed that the bitumen/microcapsules samples gradually became softer and increased viscosity based on the viscosity changes, softening point, and penetration parameters. The tensile test also proved that adding microcapsules reduced the tensile strength of aged bitumen and increased the tensile elongation with the extension of time, which was entirely attributed to the action of the secreted rejuvenator molecules. The complex shear modulus (G*) values of bitumen/microcapsules samples gradually decreased with anti-aging time increasing at the same temperature. The phase angle values (δ) show that its value gradually decreases after the anti-aging process, indicating that the elastic composition of bitumen increases.