Provided is a surgical electrode having a coating, which is an electrode for surgery other than an electrosurgical instrument used in a living tissue operation, and carbide of living tissue and the like is difficult to adhere to the coating, and adhesion of the coating to the surgical electrode Sexuality is excellent. Specifically, the present invention provides a surgical electrode, which is an electrode for surgery other than an electric surgical instrument for living tissue surgery. The electrode includes: the surgical electrode system has a tip portion capable of emitting high-frequency waves； and the tip portion system It has a surface treatment film, and the surface treatment film includes a first film and a second film in sequence； the surface treatment agent (X) is in contact with at least all or part of the surface or surface of the front end portion to form the first A film, and the surface treatment agent (X) includes a compound having at least an amino group； the second film is formed by contacting the surface treatment agent (Y) with at least all or a part of the surface of the first film, and the surface The treatment agent (Y) includes: a silicone resin (A)； a compound (B), which includes a metal element selected from titanium, platinum, rhodium, and palladium； an aromatic hydrocarbon-based solvent (C)； wherein, (I) With respect to the total solid mass of the silicone resin (A) and the compound (B), the content of the silicone resin (A) is within a range of 90% by mass or more and 99.9% by mass or less； and (II) the silicon mass of epoxy resin (a), (a M) with the compound (B) of mass (B M) of the ratio (B M / a M) and the Department of 0.111 or less than 0.001.提供一種具有被膜的外科用電極，其係活體組織手術中所使用的電力外科用器具之外科用電極，且活體組織等的碳化物難以附著於前述被膜，且前述被膜與外科用電極的密著性優良。具體而言，本發明提供一種外科用電極，其係用於活體組織手術的電力外科用器具之外科用電極，其係包含：前述外科用電極係具有能夠放出高頻波的前端部；前述前端部係具有表面處理被膜，且前述表面處理被膜依序包含第一皮膜及第二被膜；藉由使表面處理劑(X)至少與前述前端部的全部或一部分之表面或表面上接觸來形成前述第一皮膜，且前述表面處理劑(X)係包含至少具有氨基的化合物；藉由使表面處理劑(Y)至少與前述第一皮膜的全部或一部分之表面接觸來形成前述第
