The invention discloses a housing building construction site noise detection device capable of being installed conveniently. The device comprises a left shell body, a central processing box, a sound pressure sensor and a scaffold, wherein the bottom of the left shell body is provided with a micro battery, the left side of the micro battery is provided with a rubber pad, the central processing boxis located above the micro battery, a bearing plate is arranged above the central processing box, the sound pressure sensor is located above the bearing plate, a control panel is arranged on the leftside of the sound pressure sensor, the left and right sides of the control panel are provided with electric wires, the right side of the control panel is provided with a right shell body, the left side of the inner portion of the right shell body is provided with a U-shaped groove, the upper portion of the right shell body is provided with a limiting groove, a connecting rod is arranged at the lower portion of the right shell body, and the scaffold is located on the right side of the left shell body. The housing building construction site noise detection device capable of being installed conveniently can quickly install the detection device in the housing building construction site, and can comprehensively detect the noise in the construction site.