Background Art: In the water quality detection of rivers, lakes, landscape rivers, etc., the more important are five conventional indicators: pH, dissolved oxygen, temperature, turbidity, and conductivity. However, the existing water quality testing methods mainly have the following problems: 1. The traditional testing methods mainly use manual sampling and analysis. This method has high labor intensity, low sampling frequency, and limited sampling samples, and has been gradually eliminated. 2. Methods of using sensors and supporting instruments. Since each sensor needs to be equipped with corresponding analysis and display instruments, the equipment will be redundant and cumbersome, inconvenient to use, and the overall price will be relatively expensive. 3. The power supply of water quality testing instruments is a problem that must be solved. Battery power is mainly supplied, which requires the battery to be fully charged before each operation. When conducting large-area water testing, once the battery energy is exhausted, it is usually difficult to charge in time, and the operation is forced to stop. In order to overcome the shortcomings in the prior art, a portable self-powered water quality detection module is provided, in order to detect five conventional indicators of water quality and environment in real time, accurately and efficiently, and at the same time, self-powered methods are adopted to ensure the source of power, thereby improving Collection efficiency and reducing equipment costs. In order to solve the technical problem, the following technical scheme is adopted: a portable self-powered water quality detection module is characterized by being arranged on a ship body and used for detecting water quality parameters of the water environment; the detection module comprises a power unit, a fixed unit and an acquisition unit; the power unit comprises a turbine, a T-bracket, a power generation module, and a battery; the fixed unit comprises a fixed rod and a suction cup; the acquisition unit comprises a data collector and various water quality detection sensors; The various water quality detection sensors include: a pH sensor, a dissolved oxygen and temperature sensor, a turbidity sensor, and a conductivity sensor; the fixed rod is fixed on the ship's side position of the ship body through the suction cup, and a groove track is arranged on the fixed rod; a slidable T-shaped bracket is arranged in the groove track, and the turbine is fixed at the end of the T-shaped bracket; the turbine is located below the water surface and used to provide kinetic energy for the power generation module; The power generation module converts the kinetic energy into electrical energy and charges the battery, thereby providing power to the data collector, pH sensor, dissolved oxygen and temperature sensor, turbidity sensor and conductivity sensor; The data collector uses the PH sensor to collect the PH value of the water environment, uses the dissolved oxygen value and temperature sensor to collect the dissolved oxygen value and temperature value of the water environment, uses the turbidity sensor to collect the turbidity value of the water environment, and uses the conductivity sensor to collect the conductivity of the water environment, thereby obtaining the water quality parameters and outputting them through the RS232 serial port. The portable self-powered water quality detection module described in the utility model is also characterized in that the data collector comprises an input interface circuit, an ARM processor, an output interface circuit and a voltage conversion circuit; the input interface circuit comprises a signal conditioning module, a dissolved oxygen transmitter, a level conversion module, and a conductance transmitter. The signal conditioning module amplifies and filters the analog voltages output by the PH sensor and the turbidity sensor respectively, converts them into voltage signals in the range of 0 - 5V, and provides them to the A/D sampling port of the ARM processor; The dissolved oxygen transmitter and the conductance transmitter respectively convert the digital quantities output by the dissolved oxygen and temperature sensor and the conductivity sensor into 485 digital signals, and convert them into RS-232 digital signals through a level conversion module and provide them to the serial port of the ARM processor.  Compared with the prior art, the beneficial effects of the present invention are reflected in the following: 1. The utility model is a portable, convenient to install, and self-powered water quality detection module that integrates five types of sensors: pH, dissolved oxygen, temperature, turbidity, and conductivity. The data collection and output of the five types of sensors are completed through a data collector. It has comprehensive functions, small size, and low cost; it has high practicality. 2. The utility model adopts a small turbine generator that can be adsorbed on the ship's side. The water current drives the turbine to generate electrical energy, which charges the lithium battery in the system. It can supply power to the detection module in real time, making it easy to use. 3. The utility model realizes the simultaneous real-time detection of multiple water quality parameters, and can be widely used in online water quality detection of rivers, lakes, landscape river channels and other water environments, and has important application value and promotion prospects.