Abstract: Polyethyleneglycol diglycidyl ether (PEG-DE) and ethyleneglycol diglycidyl ether (EG-DE) were used to react with 2-furylmethylamine (FMA) to synthesize a series of prepolymers of polyetheramines (Pre-PEA) grafted with furan groups. With Bismaleimide (BMI) as the crosslinking agent, a series of polyetheramine (PEA) samples were synthesized via Diels-Alder reaction. The mechanical properties of PEA samples and the influence factors were studied by a series of tensile measurements. It was shown that the chain structure and crosslinking density could have significant impacts on the mechanical performances of the PEA. As the two factors changed, PEA changed from flexible to rigid, equipping the PEA with outstanding thermal plastic reprocessing ability. Self-healing tests were conducted on the PEA samples to discuss the range of the healing temperature during the self-healing process. When the temperature was raised up to 120℃, the cracks on the surfaces of the samples were recovered. Importantly, the reversible Diels-Alder reaction endued the remolding and self-healing abilities to the PEA. Two remolding approaches were conducted and studied in this system. The mechanical properties of the regenerated PEA were studied by a series of tensile measurements. After remolding for two generations, the regenerated PEA sample maintained above 70% of the original breaking strength and above 80% of the original the elongation at break. To be concluded, this series of PEA samples exhibited great performance on self-healing and remolding properties.