The invention relates to an electronic control unit for a dry-type 5-speed-grade double clutch transmission. The electronic control unit comprises a main control chip, a signal conditioning circuit and a power supply circuit, wherein the main control chip is respectively connected with the signal conditioning circuit and the power supply circuit; the main control chip comprises a CPU (central processing unit), a minimal system circuit, a clutch and a gear shift motor driven circuit, a double CAN (controller area network) communication circuit, an SPI (serial peripheral interface) circuit, an SCI (serial communications interface) circuit connected with a restrictor controller, an A/D (analog-to-digital) conversion module, an I/O input/output port, and an ECT (enhanced capture timer) module; and the CPU is respectively connected with the minimal system circuit, the clutch as well as the gear shift motor driven circuit, the double CAN communication circuit, the SPI circuit, the SCI circuit, the A/D conversion module, the I/O port, and the ECT module. Compared with the prior art, the electronic control unit provided by the invention has the advantages of low cost, high reliability and the like.