Child garment capable of being lengthened

The invention discloses a child garment capable of being lengthened. The child garment comprises a coat, trousers, lengthened bodies, button holes and buttons. The coat comprises collars, sleeves and a coat body. The trousers comprise a trousers waist and trousers legs. The lengthened bodies comprise sleeve lengthened bodies, coat body lengthened bodies and trousers leg lengthened bodies. The button holes are evenly formed in the edges of cuffs, the edges of the lower hem of the coat body and the edges of the trousers legs, and the buttons are evenly arranged at the upper end of the sleeve lengthened bodies, the coat body lengthened bodies and the trousers leg lengthened bodies. By means of the mode, the child garment capable of being lengthened is reasonable in design, convenient to use, novel and unique in style, attractive and elegant, meanwhile, the service life of the child garment can be prolonged, and the expenditure is saved for families.