The invention discloses a drop weight type dynamic and static combined load impact experimental device which is characterized by comprising a body (1) and a sample bearing table (2), wherein the sample bearing table (2) is positioned on the body (1); a sample is arranged on the sample bearing table (2) and is connected with a hydraulic static load pressure mechanism which applies static pressure; an impact mechanism which can move up and down along a guide post (7) is arranged on the upper part of the body (1) and is connected with a lifting mechanism arranged on the lower part of the body. According to the experimental device disclosed by the invention, the coal and rock sample can be dynamically and controllably loaded in different dynamic and static combined forms, and multiple stress wave loading modes of coal and rock materials are simulated, so that the experimental result has the high practical engineering significance. The drop weight type dynamic and static combined load impact experimental device is simple in structure, convenient to operate and good in controllability. According to power failure tightening states of a brake driving motor and an electric hook, the impact mechanism is prevented from falling to injure people during unexpected power failures, so that the effective safety protection is realized.