Disturbing footage shows the moment a thief grabbed a woman’s purse at knifepoint and knocked her to the ground in Queens last week. 

The 60-year-old victim was walking on 90th Road near 80th Street in Woodhaven around 9:30 a.m. Thursday when the suspect trailed her down the block, according to the NYPD and video it released Tuesday. 

The suspect then displayed a knife and yanked the woman’s bag from her hands, causing her to fall to the ground, according to authorities and the short clip.

The suspect ran off with the bag, which held the victim’s phone and $100, cops said. 

The woman was taken to Jamaica Hospital Medical Center in stable condition with an elbow injury. 

Her attacker was described as having a medium build, about 5-foot-10 and 160 pounds, cops said. 

He was last seen wearing a black hooded sweatshirt, light-colored face mask, gray pants and black and white sneakers.