A pyridine energetic molecule， N²，N⁶-dimethyl-N²，N⁴，N⁶，3，5-pentanitro-2，4，6-pyridinetriamine （NNDP）， has been synthesized in two steps from 4-amino-2，6-dichloropyridine. The process was found to be effective and simple. The structure of this compound is characterized by ¹H and ¹³C NMR， FT-IR and DSC. The crystal structure of this compound is characterized by X-ray single crystal diffraction. Results shows that compound NNDP belongs to the monoclinic space group P 2₁/c， a=16.3215（17） Å， b=7.9819（8） Å， c=13.1954（13） Å， V=1712.3（3） ų， α=90（6）^o， β=95.093（3）^o， γ=90（7）^o， Z=4. The presence of multiple nitro and nitramine groups contributes to a low decomposition temperature. Its detonation performance was predicted using EXPLO5， and sensitivity testing was conducted using the BAM standard method.It was found that the detonation performance and impact sensitivity of NNDP（D=8762 m·s^-1， p=34.5 GPa， IS=7.7 J） are comparable to those of RDX.