This invention discloses a square plastic bucket suitable for construction workers and capable of accommodating multiple kinds of living goods and relates to the field of living goods, in particular to a bucket container. The construction workers often go out, or travel around, and often carry lots of luggage, and the plastic bucket and the living goods inside the plastic bucket are necessary. The square plastic bucket mainly comprises a square plastic bucket main body and a square hard bucket cover; the cross-sectional shape of the main body is rectangular rather than circular; two reinforced hollow iron cylinders in a crossed mode are further arranged on the diagonals of the square hard bucket cover for reinforcing, and a person can sit on the square hard bucket cover; and a hinge is further arranged on the left side of the square hard bucket cover, and the square hard bucket cover is hinged to the edge of the square plastic bucket main body through the hinge. The square plastic bucket has the advantages that the goods are conveniently stored, and the person can sit for a while on the square plastic bucket.