Abstract: A handheld vacuum cleaner, mainly comprising a main body and a dust collection accessory, wherein the main body comprises a housing (3) and a dust cup (8), a dust collection pipe (1) is provided on the dust cup, a motor (2), a battery pack (7) and a handle (6) are provided above the dust cup, a cyclone filter (81) is provided within the dust cup, an inlet filter sponge component (9) and an inlet strainer component (10) provided around the periphery of the inlet filter sponge component are arranged within the cyclone filter, a dust cup base cover (85) is provided at the bottom of the dust cup, an opening (851) is provided on the dust cup base cover, and the inlet filter sponge component is directly mounted or removed at the bottom of a dust cup.