To solve the problem that in an apparatus for washing hen eggs or spherical fruits and vegetables, although hen eggs or spherical fruits and vegetables to be washed advance linearly in the washing apparatus, since bristle tips of rotary brushes draw circular arcs, the time in which the rotary brushes are in contact with the articles to be washed is short, dirt attached to the articles to be washed is not sufficiently removed when the number of rotary brushes is not increased.

The hen eggs E are conveyed in a conveying direction A by conveying means 3 having projecting parts and efficiently brought into contact with a plurality of the mounted rotary brushes 2 attached to the washing apparatus 1. Since the contact time between the rotary brushes 2 and the hen eggs E increases and washing effects are improved, dirt attached to the hen eggs E is sufficiently removed without increasing the number of the rotary brushes 2 of the washing apparatus 1.