The present invention relates to an electrostatic protection circuit for protecting an internal circuit. The electrostatic protection circuit includes: a first circuit connected between a power pad and an input pad and configured to discharge a first electrostatic current; a second circuit connected between the input pad and a ground pad and configured to discharge a second electrostatic current; a third circuit connected between the power pad and the input pad and configured to discharge a third electrostatic current; a fourth circuit connected between the power pad and the ground pad and configured to discharge a fourth electrostatic current; a fifth circuit connected between the input pad and the ground pad and configured to discharge a fifth electrostatic current; and a sixth circuit connected between the ground pad and the power pad and configured to discharge a sixth electrostatic current.