The invention relates to a thread plug-in type electronic control hydraulic lock which comprises a flux sleeve, a fixed iron, a moving iron, a coil, a main valve core, a
pilot valve core, a valve pocket, a
piston, a
valve seat and a
check valve core, wherein the flux sleeve comprises a body and an extension tube which is formed by extending the body backward; the
valve seat comprises a first oil port and a second oil port, the main valve core is limited on the rear end of the
valve seat, the front end of the valve seat is provided with a first through oil hole and a second through oil hole which are provided with axial openings, the
pilot valve core axially extends forwards from the moving iron, enters into the hollow cavity of the main valve core and the front end part of the
pilot valve core is coordinated with the opening and closure of the first through oil hole of the main valve core; the front end of the valve pocket is provides a third air port with an axial opening and a fourth air port which is radially arranged in the middle part; and the front end of the
check valve core is provided with a driving face, the side wall of the
check valve core is provided with a third through oil hole which can be connected or disconnected with the fourth air port. Compared with the prior art, the hydraulic lock provided by the invention has the advantages that the
control release load of the hydraulic lock is realized through the electronic control structure, the integral structure is compact, multifunction integration is realized, the volume is small, the
assembly and disassembly are convenient and rapid, and the property is reliable and stable in the long term usage.