Capacity detecting method of horizontal oil tank

The invention relates to a capacity detection method of a horizontal oil tank, which comprises the following steps: acquiring data reflecting the capacity change principle of the horizontal oil tank, i.e. measuring the data; processing the measured data according to an integral unification formation principle, finding out the capacity change principle of the horizontal oil tank; and pegging geometric dimension of the capacity change of the horizontal oil tank according to the capacity change principle, and obtaining a capacity table of the horizontal oil tank by the geometric dimension. The capacity detection method of the horizontal oil tank can obtain an oil tank capacity table with high accuracy, has scientific setting, high accuracy, convenient operation and strong practicability, and avoids the problems of business termination, tank emptying, poor safety, high cost and the like during obtaining the oil tank capacity table.