We develop an Electrical instrument of Phasor Measurement Unit (PMU) based on FPGA. This Instrument will use FPGA as main control of measurement and some addition of devices, they are Global Positioning System (GPS), and external Analog to Digital Converter (ADC). GPS is used as time matching and External ADC used as Converter Analog to Digital to measure the value of current and voltage. Overall system is divided into several parts, they are Voltage - Current measurement and GPS data reader. All data will be distributed and transmitted in parallel mode with UART communication. Parallel measurement is needed in order to get a real-time data of current and voltage. Part of Voltage - Current measurement system will need a buffer which transfer the Data from ADC and register file to store the conversion data. GPS data measurement needs UART data receiver since the GPS module using UART to communicate with another device, a Data Parser and UART Transmitter to transfer the parsed data. All of part will be combined into one group and made an instrument for PMU.